55118320944 has 20 divisors (see below), whose sum is σ = 142388995896. Its totient is φ = 18372773632.

The previous prime is 55118320889. The next prime is 55118320963. The reversal of 55118320944 is 44902381155.

55118320944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55118320944² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55118320896 and 55118320905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574149129 + ... + 574149224.

Almost surely, 2^55118320944 is an apocalyptic number.

It is an amenable number.

55118320944 is an abundant number, since it is smaller than the sum of its proper divisors (87270674952).

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

55118320944 is a wasteful number, since it uses less digits than its factorization.

55118320944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148298364 (or 1148298358 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 55118320944 in words is "fifty-five billion, one hundred eighteen million, three hundred twenty thousand, nine hundred forty-four".