55639700793657 has 12 divisors (see below), whose sum is σ = 80817442495920. Its totient is φ = 36885909649848.

The previous prime is 55639700793641. The next prime is 55639700793661. The reversal of 55639700793657 is 75639700793655.

55639700793657 is a `hidden beast` number, since 5 + 563 + 9 + 7 + 0 + 0 + 7 + 9 + 3 + 6 + 57 = 666.

It is not a de Polignac number, because 55639700793657 - 2⁴ = 55639700793641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55639700793667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17268682683 + ... + 17268685904.

It is an arithmetic number, because the mean of its divisors is an integer number (6734786874660).

Almost surely, 2^{55639700793657} is an apocalyptic number.

It is an amenable number.

55639700793657 is a deficient number, since it is larger than the sum of its proper divisors (25177741702263).

55639700793657 is a wasteful number, since it uses less digits than its factorization.

55639700793657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34537368772 (or 34537368769 counting only the distinct ones).

The product of its (nonzero) digits is 1125211500, while the sum is 72.

The spelling of 55639700793657 in words is "fifty-five trillion, six hundred thirty-nine billion, seven hundred million, seven hundred ninety-three thousand, six hundred fifty-seven".