315656599091 has 24 divisors (see below), whose sum is σ = 329818660080. Its totient is φ = 302003726400.

The previous prime is 315656599067. The next prime is 315656599099. The reversal of 315656599091 is 190995656513.

It is a de Polignac number, because none of the positive numbers 2^k-315656599091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315656599091.

It is not an unprimeable number, because it can be changed into a prime (315656599099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23583221 + ... + 23596601.

It is an arithmetic number, because the mean of its divisors is an integer number (13742444170).

Almost surely, 2^315656599091 is an apocalyptic number.

315656599091 is a deficient number, since it is larger than the sum of its proper divisors (14162060989).

315656599091 is a wasteful number, since it uses less digits than its factorization.

315656599091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13715 (or 13668 counting only the distinct ones).

The product of its (nonzero) digits is 9841500, while the sum is 59.

The spelling of 315656599091 in words is "three hundred fifteen billion, six hundred fifty-six million, five hundred ninety-nine thousand, ninety-one".