5655664783920 has 160 divisors (see below), whose sum is σ = 18734200309440. Its totient is φ = 1406438277120.

The previous prime is 5655664783913. The next prime is 5655664783949. The reversal of 5655664783920 is 293874665565.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5913961 + ... + 6803400.

It is an arithmetic number, because the mean of its divisors is an integer number (117088751934).

Almost surely, 2^{5655664783920} is an apocalyptic number.

It is an amenable number.

5655664783920 is an abundant number, since it is smaller than the sum of its proper divisors (13078535525520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5655664783920 is a wasteful number, since it uses less digits than its factorization.

5655664783920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12717503 (or 12717497 counting only the distinct ones).

The product of its (nonzero) digits is 326592000, while the sum is 66.

The spelling of 5655664783920 in words is "five trillion, six hundred fifty-five billion, six hundred sixty-four million, seven hundred eighty-three thousand, nine hundred twenty".