15331612956 has 24 divisors (see below), whose sum is σ = 39025924224. Its totient is φ = 4645943280.

The previous prime is 15331612931. The next prime is 15331612963. The reversal of 15331612956 is 65921613351.

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, 58074160 + ... + 58074423.

It is an arithmetic number, because the mean of its divisors is an integer number (1626080176).

Almost surely, 2^15331612956 is an apocalyptic number.

It is an amenable number.

15331612956 is an abundant number, since it is smaller than the sum of its proper divisors (23694311268).

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

15331612956 is a wasteful number, since it uses less digits than its factorization.

15331612956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116148601 (or 116148599 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The spelling of 15331612956 in words is "fifteen billion, three hundred thirty-one million, six hundred twelve thousand, nine hundred fifty-six".