655511655656 has 64 divisors (see below), whose sum is σ = 1444385174400. Its totient is φ = 274958726400.

The previous prime is 655511655629. The next prime is 655511655671. The reversal of 655511655656 is 656556115556.

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, 3876605 + ... + 4042163.

It is an arithmetic number, because the mean of its divisors is an integer number (22568518350).

Almost surely, 2^655511655656 is an apocalyptic number.

It is an amenable number.

655511655656 is an abundant number, since it is smaller than the sum of its proper divisors (788873518744).

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

655511655656 is a wasteful number, since it uses less digits than its factorization.

655511655656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169050 (or 169046 counting only the distinct ones).

The product of its digits is 20250000, while the sum is 56.

The spelling of 655511655656 in words is "six hundred fifty-five billion, five hundred eleven million, six hundred fifty-five thousand, six hundred fifty-six".