65566050000056 has 64 divisors (see below), whose sum is σ = 128032528219200. Its totient is φ = 31439326464000.

The previous prime is 65566050000043. The next prime is 65566050000181. The reversal of 65566050000056 is 65000005066556.

It is a junction number, because it is equal to n+sod(n) for n = 65566049999971 and 65566050000016.

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, 316620806 + ... + 316827818.

It is an arithmetic number, because the mean of its divisors is an integer number (2000508253425).

Almost surely, 2^{65566050000056} is an apocalyptic number.

It is an amenable number.

65566050000056 is a deficient number, since it is larger than the sum of its proper divisors (62466478219144).

65566050000056 is a wasteful number, since it uses less digits than its factorization.

65566050000056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216240 (or 216236 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 65566050000056 in words is "sixty-five trillion, five hundred sixty-six billion, fifty million, fifty-six", and thus it is an aban number.