56686515320 has 16 divisors (see below), whose sum is σ = 127544659560. Its totient is φ = 22674606112.

The previous prime is 56686515287. The next prime is 56686515341. The reversal of 56686515320 is 2351568665.

56686515320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56686515320² (a number of 22 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, 708581402 + ... + 708581481.

Almost surely, 2^56686515320 is an apocalyptic number.

It is an amenable number.

56686515320 is an abundant number, since it is smaller than the sum of its proper divisors (70858144240).

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

56686515320 is a wasteful number, since it uses less digits than its factorization.

56686515320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417162894 (or 1417162890 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 56686515320 in words is "fifty-six billion, six hundred eighty-six million, five hundred fifteen thousand, three hundred twenty".