655564356432 has 60 divisors (see below), whose sum is σ = 1836666438880. Its totient is φ = 218283626304.

The previous prime is 655564356409. The next prime is 655564356449. The reversal of 655564356432 is 234653465556.

It is a happy number.

655564356432 is a `hidden beast` number, since 6 + 5 + 5 + 5 + 6 + 43 + 564 + 32 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2344558 + ... + 2609229.

Almost surely, 2^655564356432 is an apocalyptic number.

It is an amenable number.

655564356432 is an abundant number, since it is smaller than the sum of its proper divisors (1181102082448).

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

655564356432 is a wasteful number, since it uses less digits than its factorization.

655564356432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954720 (or 4954711 counting only the distinct ones).

The product of its digits is 38880000, while the sum is 54.

The spelling of 655564356432 in words is "six hundred fifty-five billion, five hundred sixty-four million, three hundred fifty-six thousand, four hundred thirty-two".