Big Numbers

Sets of 3 zeros Past 1,000	Name	Number of Zeros
1	million	6 (1,000,000)
2	billion	9 (1,000,000,000)
3	trillion	12 (1,000,000,000,000)
4	quadrillion	15 (1,000,000,000,000,000)
5	quintillion	18 (1,000,000,000,000,000,000)
6	sextillion	21 (1,000,000,000,000,000,000,000)
7	septillion	24 (1,000,000,000,000,000,000,000,000)
8	octillion	27 (1,000,000,000,000,000,000,000,000,000)
9	nonillion	30 (1,000,000,000,000,000,000,000,000,000,000)
10	decillion	33 (1,000,000,000,000,000,000,000,000,000,000,000)
11	undecillion	36
12	duodecillion	39
13	tredecillion	42
14	quattuordecillion	45
15	quindecillion	48
16	sexdecillion	51
17	septendecillion	54
18	octodecillion	57
19	novemdecillion	60
20	vigintillion	63
21	unvigintillion	66
22	duovigintillion	69
23	trevigintillion	72
24	quattuorvigintillion	75
25	quinvigintillion	78
26	sexvigintillion	81
27	septenvigintillion	84
28	octovigintillion	87
29	novemvigintillion	90
30	trigintillion	93
31	untrigintillion	96
32	duotrigintillion	99
33	tretrigintillion	102
34	quattuortrigintillion	105
35	quintrigintillion	108
36	sextrigintillion	111
37	septentrigintillion	114
38	octotrigintillion	117
39	novemtrigintillion	120
40	quadragintillion	123
41	unquadragintillion	126
42	duoquadragintillion	129
43	trequadragintillion	132
44	quattuorquadragintillion	135
45	quinquadragintillion	138
46	sexquadragintillion	141
47	septenquadragintillion	144
48	octoquadragintillion	147
49	novemquadragintillion	150
50	quinquagintillion	153
51	unquinquagintillion	156
52	duoquinquagintillion	159
53	trequinquagintillion	162
54	quattuorquinquagintillion	165
55	quinquinquagintillion	168
56	sexquinquagintillion	171
57	septenquinquagintillion	174
58	octoquinquagintillion	177
59	novemquinquagintillion	180
60	sexagintillion	183
61	unsexagintillion	186
62	duosexagintillion	189
63	tresexagintillion	192
64	quattuorsexagintillion	195
65	quinsexagintillion	198
66	sexsexagintillion	201
67	septensexagintillion	204
68	octosexagintillion	207
69	novemsexagintillion	210
70	septuagintillion	213
71	unseptuagintillion	216
72	duoseptuagintillion	219
73	treseptuagintillion	222
74	quattuorseptuagintillion	225
75	quinseptuagintillion	228
76	sexseptuagintillion	231
77	septenseptuagintillion	234
78	octoseptuagintillion	237
79	novemseptuagintillion	240
80	octogintillion	243
81	unoctogintillion	246
82	duooctogintillion	249
83	treoctogintillion	252
84	quattuoroctogintillion	255
85	quinoctogintillion	258
86	sexoctogintillion	261
87	septoctogintillion	264
88	octooctogintillion	267
89	novemoctogintillion	270
90	nonagintillion	273
91	unnonagintillion	276
92	duononagintillion	279
93	trenonagintillion	282
94	quattuornonagintillion	285
95	quinnonagintillion	288
96	sexnonagintillion	291
97	septennonagintillion	294
98	octononagintillion	297
99	novemnonagintillion	300
100	centillion	303

There is also the number googol. It has 100 zeros after it, and it looks like this:
10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

Beyond that is the googolplex, which is a one followed by a googol zeroes. A googolplex is actually a useless number to the scientific community because it exceeds the number of particles in in universe.