**000,000,000,000,000,000,000,000,000,000,000**,

**000,000,000,000,000,000,000,000,000,000,000**.

A Googol is already bigger than the number of elementary particles in the known Universe, but then there is the Googolplex. It is 1 followed by Googol zeros.

Correspondingly, how many zeros are in a googolplex number?

Googol: A very large number! A "1" followed by

**one hundred zeros**. Googolplex: The world's second largest number with a name. A "1" followed by a googol of zeros.What is the largest number known to man?

The largest number that has a commonly-known specific name is a "googleplex", which is a 1 followed by a googol zeros, where a "googol" is (a 1 followed by

**100**zeros).How many zeros are in a quintillion?

Billion

Trillion 1,000,000,000,000 (

Quadrillion 1,000,000,000,000,000 (

Quintillion 1,000,000,000,000,000,000 (18 zeros)

**1,000,000,000**(**9 zeros**)Trillion 1,000,000,000,000 (

**12 zeros**)Quadrillion 1,000,000,000,000,000 (

**15 zeros**)Quintillion 1,000,000,000,000,000,000 (18 zeros)