13157026620 has 24 divisors (see below), whose sum is σ = 36839674704. Its totient is φ = 3508540416.

The previous prime is 13157026583. The next prime is 13157026627. The reversal of 13157026620 is 2662075131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157026627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109641829 + ... + 109641948.

It is an arithmetic number, because the mean of its divisors is an integer number (1534986446).

Almost surely, 2^13157026620 is an apocalyptic number.

13157026620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13157026620 is an abundant number, since it is smaller than the sum of its proper divisors (23682648084).

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

13157026620 is a wasteful number, since it uses less digits than its factorization.

13157026620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219283789 (or 219283787 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 13157026620 in words is "thirteen billion, one hundred fifty-seven million, twenty-six thousand, six hundred twenty".