I think its 18 now?
quintillion
81,000,000,000,000,000,000
The next set of numbers after trillion are quadrillion and quintillion
1818 zero's are in a quintillion.
There are eighteen zero's, just like 1 quintillion.1 quintillion: 1,000,000,000,000,000,00013 quintillion: 13,000,000,000,000,000,000
Quintillion has eighteen zeros. 1,000,000,000,000,000,000
If you allow for zeros, that's 10^16, which is ten quintillion, or 10,000,000,000,000,000. If not, it's 9^16, which is 1,853,020,188,851,841, or 1.85 quintillion. (1.85x10^15)
1 quintillion would be 1,000,000 trillion.
In the short scale naming system for large numbers, it is one quintillion.
There are 1 trillion (1,000,000,000,000) gallons in a quintillion.
1 quintillion would be 1 million million million.
18