56886600668866 has 16 divisors (see below), whose sum is σ = 86086530691200. Its totient is φ = 28191907975600.

The previous prime is 56886600668837. The next prime is 56886600668903. The reversal of 56886600668866 is 66886600668865.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204244810 + ... + 204523141.

It is an arithmetic number, because the mean of its divisors is an integer number (5380408168200).

Almost surely, 2^{56886600668866} is an apocalyptic number.

56886600668866 is a deficient number, since it is larger than the sum of its proper divisors (29199930022334).

56886600668866 is a wasteful number, since it uses less digits than its factorization.

56886600668866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408768569.

The product of its (nonzero) digits is 5733089280, while the sum is 79.

Subtracting 56886600668866 from its reverse (66886600668865), we obtain a palindrome (9999999999999).

The spelling of 56886600668866 in words is "fifty-six trillion, eight hundred eighty-six billion, six hundred million, six hundred sixty-eight thousand, eight hundred sixty-six".