What number has 15 zeros?

What number has 15 zeros? To be more specific, we assume you are asking what is 1 followed by exactly 15 zeros like this:

1 000 000 000 000 000

The name of a 1 with 15 zeros is displayed below:

One Quadrillion

To put it in perspective, one quadrillion has one more zero than one hundred trillion and one less zero compared to ten quadrillion.

Numbers with Zeros
Now you know what number has 15 zeros. Submit another number of zeros here:

What number has 16 zeros?
Go here for information about the next number on our list that has many zeros.