56855677655864 has 16 divisors (see below), whose sum is σ = 106791093328920. Its totient is φ = 28378052768160.

The previous prime is 56855677655863. The next prime is 56855677655899. The reversal of 56855677655864 is 46855677655865.

It is a super-4 number, since 4×56855677655864⁴ (a number of 56 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56855677655863) 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, 6223252619 + ... + 6223261754.

Almost surely, 2^{56855677655864} is an apocalyptic number.

It is an amenable number.

56855677655864 is a deficient number, since it is larger than the sum of its proper divisors (49935415673056).

56855677655864 is a wasteful number, since it uses less digits than its factorization.

56855677655864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12446514950 (or 12446514946 counting only the distinct ones).

The product of its digits is 50803200000, while the sum is 83.

Subtracting from 56855677655864 its reverse (46855677655865), we obtain a palindrome (9999999999999).

The spelling of 56855677655864 in words is "fifty-six trillion, eight hundred fifty-five billion, six hundred seventy-seven million, six hundred fifty-five thousand, eight hundred sixty-four".