13085502720 has 72 divisors (see below), whose sum is σ = 41791836576. Its totient is φ = 3489466368.

The previous prime is 13085502709. The next prime is 13085502751. The reversal of 13085502720 is 2720558031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700002 + ... + 1707681.

Almost surely, 2^13085502720 is an apocalyptic number.

13085502720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13085502720 is an abundant number, since it is smaller than the sum of its proper divisors (28706333856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13085502720 is an equidigital number, since it uses as much as digits as its factorization.

13085502720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407707 (or 3407693 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 13085502720 in words is "thirteen billion, eighty-five million, five hundred two thousand, seven hundred twenty".