55940612656 has 20 divisors (see below), whose sum is σ = 108530834832. Its totient is φ = 27932655296.

The previous prime is 55940612633. The next prime is 55940612671. The reversal of 55940612656 is 65621604955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340931 + ... + 2364706.

Almost surely, 2^55940612656 is an apocalyptic number.

It is an amenable number.

55940612656 is a deficient number, since it is larger than the sum of its proper divisors (52590222176).

55940612656 is a wasteful number, since it uses less digits than its factorization.

55940612656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706388 (or 4706382 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 55940612656 in words is "fifty-five billion, nine hundred forty million, six hundred twelve thousand, six hundred fifty-six".