27964812552656 has 80 divisors (see below), whose sum is σ = 62033408857728. Its totient is φ = 11963388787200.

The previous prime is 27964812552653. The next prime is 27964812552709. The reversal of 27964812552656 is 65625521846972.

It is a super-2 number, since 2×27964812552656² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27964812552653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174024026 + ... + 174184646.

Almost surely, 2^{27964812552656} is an apocalyptic number.

It is an amenable number.

27964812552656 is an abundant number, since it is smaller than the sum of its proper divisors (34068596305072).

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

27964812552656 is a wasteful number, since it uses less digits than its factorization.

27964812552656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163420 (or 163414 counting only the distinct ones).

The product of its digits is 435456000, while the sum is 68.

The spelling of 27964812552656 in words is "twenty-seven trillion, nine hundred sixty-four billion, eight hundred twelve million, five hundred fifty-two thousand, six hundred fifty-six".