556064460656 has 20 divisors (see below), whose sum is σ = 1077464241000. Its totient is φ = 278009172672.

The previous prime is 556064460641. The next prime is 556064460727. The reversal of 556064460656 is 656064460655.

It is a junction number, because it is equal to n+sod(n) for n = 556064460598 and 556064460607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1241306 + ... + 1628793.

It is an arithmetic number, because the mean of its divisors is an integer number (53873212050).

Almost surely, 2^556064460656 is an apocalyptic number.

It is an amenable number.

556064460656 is a deficient number, since it is larger than the sum of its proper divisors (521399780344).

556064460656 is a wasteful number, since it uses less digits than its factorization.

556064460656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882216 (or 2882210 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 53.

Subtracting 556064460656 from its reverse (656064460655), we obtain a palindrome (99999999999).

The spelling of 556064460656 in words is "five hundred fifty-six billion, sixty-four million, four hundred sixty thousand, six hundred fifty-six".