56558631616 has 28 divisors (see below), whose sum is σ = 112242821488. Its totient is φ = 28276975872.

The previous prime is 56558631607. The next prime is 56558631617. The reversal of 56558631616 is 61613685565.

It is not an unprimeable number, because it can be changed into a prime (56558631617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948805 + ... + 1006651.

It is an arithmetic number, because the mean of its divisors is an integer number (4008672196).

Almost surely, 2^56558631616 is an apocalyptic number.

It is an amenable number.

56558631616 is a deficient number, since it is larger than the sum of its proper divisors (55684189872).

56558631616 is a wasteful number, since it uses less digits than its factorization.

56558631616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73136 (or 73126 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 52.

The spelling of 56558631616 in words is "fifty-six billion, five hundred fifty-eight million, six hundred thirty-one thousand, six hundred sixteen".