56855677655865 has 64 divisors (see below), whose sum is σ = 104407017990912. Its totient is φ = 26167172198400.

The previous prime is 56855677655863. The next prime is 56855677655899.

56855677655865 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56855677655865 - 2¹ = 56855677655863 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 113322492 + ... + 113823101.

It is an arithmetic number, because the mean of its divisors is an integer number (1631359656108).

Almost surely, 2^{56855677655865} is an apocalyptic number.

56855677655865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56855677655865 is a deficient number, since it is larger than the sum of its proper divisors (47551340335047).

56855677655865 is a wasteful number, since it uses less digits than its factorization.

56855677655865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227145690.

The product of its digits is 63504000000, while the sum is 84.

The spelling of 56855677655865 in words is "fifty-six trillion, eight hundred fifty-five billion, six hundred seventy-seven million, six hundred fifty-five thousand, eight hundred sixty-five".