315550643600644 has 48 divisors (see below), whose sum is σ = 580011383605248. Its totient is φ = 149926178955168.

The previous prime is 315550643600627. The next prime is 315550643600663. The reversal of 315550643600644 is 446006346055513.

It is a junction number, because it is equal to n+sod(n) for n = 315550643600591 and 315550643600600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6647862 + ... + 25986445.

It is an arithmetic number, because the mean of its divisors is an integer number (12083570491776).

Almost surely, 2^{315550643600644} is an apocalyptic number.

It is an amenable number.

315550643600644 is a deficient number, since it is larger than the sum of its proper divisors (264460740004604).

315550643600644 is a wasteful number, since it uses less digits than its factorization.

315550643600644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32635024 (or 32635022 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 52.

The spelling of 315550643600644 in words is "three hundred fifteen trillion, five hundred fifty billion, six hundred forty-three million, six hundred thousand, six hundred forty-four".