56816549885 has 16 divisors (see below), whose sum is σ = 68421070656. Its totient is φ = 45292606848.

The previous prime is 56816549843. The next prime is 56816549953. The reversal of 56816549885 is 58894561865.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56816549885 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 2865014 + ... + 2884776.

It is an arithmetic number, because the mean of its divisors is an integer number (4276316916).

Almost surely, 2^56816549885 is an apocalyptic number.

It is an amenable number.

56816549885 is a deficient number, since it is larger than the sum of its proper divisors (11604520771).

56816549885 is a wasteful number, since it uses less digits than its factorization.

56816549885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21772.

The product of its digits is 82944000, while the sum is 65.

The spelling of 56816549885 in words is "fifty-six billion, eight hundred sixteen million, five hundred forty-nine thousand, eight hundred eighty-five".