This number is Nonillion and it has 30 zeros in it. That's a lot!
one nonillion 10 to the 30th power
Written as a whole number, 1030, or ten to the power 30, is equal to 100000000000000000000000000000.
1030 = 1000000000000000000000000000000
It is one nonillion.
It is -151515151515151515151515151515/1000000000000000000000000000000 = -30303030303030303030303030303/2000000000000000000000000000000