55679651964 has 24 divisors (see below), whose sum is σ = 144354653520. Its totient is φ = 18559883952.

The previous prime is 55679651891. The next prime is 55679652043. The reversal of 55679651964 is 46915697655.

55679651964 is a `hidden beast` number, since 5 + 56 + 7 + 9 + 6 + 519 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257776059 + ... + 257776274.

It is an arithmetic number, because the mean of its divisors is an integer number (6014777230).

Almost surely, 2^55679651964 is an apocalyptic number.

55679651964 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55679651964 is an abundant number, since it is smaller than the sum of its proper divisors (88675001556).

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

55679651964 is a wasteful number, since it uses less digits than its factorization.

55679651964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515552346 (or 515552338 counting only the distinct ones).

The product of its digits is 61236000, while the sum is 63.

The spelling of 55679651964 in words is "fifty-five billion, six hundred seventy-nine million, six hundred fifty-one thousand, nine hundred sixty-four".