Number of Zero

US Scientific Name

Info Tech Name

Symbol

-33

decillionth

-30

nonillionth

-27

octillionth

-24

septillionth

yocto

y

-21

sextillionth

zepto

z

-18

quintillionth

atto

a

-15

quadrillionth

femto

f

-12

trillionth

pico

p

-9

billionth

nano

n

-6

millionth

micro

mu

-3

thousandth

milli

m

3

thousand

Kilo

k

6

million

Mega

M

9

billion

Giga

G

12

trillion

Tera

T

15

quadrillion

Peta

P

18

quintillion

Exa

E

21

sextillion

Zetta

Z

24

septillion

Yotta

Y

27

octillion

30

nonillion

33

decillion

36

undecillion

39

duodecillion

42

tredecillion

45

quattuordecillion

48

quindecillion

51

sexdecillion

54

septendecillion

57

octodecillion

60

novemdecillion

63

vigintillion