55220456160 has 96 divisors (see below), whose sum is σ = 193271611680. Its totient is φ = 14725453824.

The previous prime is 55220456021. The next prime is 55220456189. The reversal of 55220456160 is 6165402255.

55220456160 is a `hidden beast` number, since 552 + 2 + 0 + 45 + 6 + 1 + 60 = 666.

55220456160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6386937 + ... + 6395576.

It is an arithmetic number, because the mean of its divisors is an integer number (2013245955).

Almost surely, 2^55220456160 is an apocalyptic number.

It is an amenable number.

55220456160 is an abundant number, since it is smaller than the sum of its proper divisors (138051155520).

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

55220456160 is a wasteful number, since it uses less digits than its factorization.

55220456160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12782537 (or 12782523 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 55220456160 in words is "fifty-five billion, two hundred twenty million, four hundred fifty-six thousand, one hundred sixty".