315969123664 has 20 divisors (see below), whose sum is σ = 625215501504. Its totient is φ = 154623187808.

The previous prime is 315969123647. The next prime is 315969123671. The reversal of 315969123664 is 466321969513.

It is a super-2 number, since 2×315969123664² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210085102 + ... + 210086605.

Almost surely, 2^315969123664 is an apocalyptic number.

It is an amenable number.

315969123664 is a deficient number, since it is larger than the sum of its proper divisors (309246377840).

315969123664 is a wasteful number, since it uses less digits than its factorization.

315969123664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420171762 (or 420171756 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 55.

The spelling of 315969123664 in words is "three hundred fifteen billion, nine hundred sixty-nine million, one hundred twenty-three thousand, six hundred sixty-four".