55168165808 has 40 divisors (see below), whose sum is σ = 129343855392. Its totient is φ = 22252704768.

The previous prime is 55168165799. The next prime is 55168165831. The reversal of 55168165808 is 80856186155.

55168165808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55168165808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14485535 + ... + 14489342.

Almost surely, 2^55168165808 is an apocalyptic number.

It is an amenable number.

55168165808 is an abundant number, since it is smaller than the sum of its proper divisors (74175689584).

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

55168165808 is a wasteful number, since it uses less digits than its factorization.

55168165808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28974909 (or 28974903 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 53.

The spelling of 55168165808 in words is "fifty-five billion, one hundred sixty-eight million, one hundred sixty-five thousand, eight hundred eight".