655563327766656 has 32 divisors (see below), whose sum is σ = 1741340089381200. Its totient is φ = 218521109255424.

The previous prime is 655563327766621. The next prime is 655563327766727. The reversal of 655563327766656 is 656667723365556.

It is a tau number, because it is divible by the number of its divisors (32).

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, 853598082646 + ... + 853598083413.

Almost surely, 2^{655563327766656} is an apocalyptic number.

It is an amenable number.

655563327766656 is an abundant number, since it is smaller than the sum of its proper divisors (1085776761614544).

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

655563327766656 is a wasteful number, since it uses less digits than its factorization.

655563327766656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707196166076 (or 1707196166064 counting only the distinct ones).

The product of its digits is 25719120000, while the sum is 78.

The spelling of 655563327766656 in words is "six hundred fifty-five trillion, five hundred sixty-three billion, three hundred twenty-seven million, seven hundred sixty-six thousand, six hundred fifty-six".