55915585868 has 24 divisors (see below), whose sum is σ = 103010080320. Its totient is φ = 26484354000.

The previous prime is 55915585841. The next prime is 55915585897. The reversal of 55915585868 is 86858551955.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751255 + ... + 1782897.

It is an arithmetic number, because the mean of its divisors is an integer number (4292086680).

Almost surely, 2^55915585868 is an apocalyptic number.

It is an amenable number.

55915585868 is a deficient number, since it is larger than the sum of its proper divisors (47094494452).

55915585868 is a wasteful number, since it uses less digits than its factorization.

55915585868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54917 (or 54915 counting only the distinct ones).

The product of its digits is 86400000, while the sum is 65.

The spelling of 55915585868 in words is "fifty-five billion, nine hundred fifteen million, five hundred eighty-five thousand, eight hundred sixty-eight".