56615636224 has 72 divisors (see below), whose sum is σ = 131271959168. Its totient is φ = 23866030080.

The previous prime is 56615636201. The next prime is 56615636227. The reversal of 56615636224 is 42263651665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56615636227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149652 + ... + 368275.

Almost surely, 2^56615636224 is an apocalyptic number.

It is an amenable number.

56615636224 is an abundant number, since it is smaller than the sum of its proper divisors (74656322944).

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

56615636224 is an equidigital number, since it uses as much as digits as its factorization.

56615636224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518011 (or 517997 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 46.

The spelling of 56615636224 in words is "fifty-six billion, six hundred fifteen million, six hundred thirty-six thousand, two hundred twenty-four".