55160181888 has 64 divisors (see below), whose sum is σ = 167450560320. Its totient is φ = 15760051200.

The previous prime is 55160181833. The next prime is 55160181959. The reversal of 55160181888 is 88818106155.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 55160181888.

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, 10257763 + ... + 10263138.

It is an arithmetic number, because the mean of its divisors is an integer number (2616415005).

Almost surely, 2^55160181888 is an apocalyptic number.

It is an amenable number.

55160181888 is an abundant number, since it is smaller than the sum of its proper divisors (112290378432).

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

55160181888 is a wasteful number, since it uses less digits than its factorization.

55160181888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20520925 (or 20520913 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 51.

The spelling of 55160181888 in words is "fifty-five billion, one hundred sixty million, one hundred eighty-one thousand, eight hundred eighty-eight".