55156105164 has 12 divisors (see below), whose sum is σ = 128697578744. Its totient is φ = 18385368384.

The previous prime is 55156105099. The next prime is 55156105181. The reversal of 55156105164 is 46150165155.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2298171037 + ... + 2298171060.

Almost surely, 2^55156105164 is an apocalyptic number.

It is an amenable number.

55156105164 is an abundant number, since it is smaller than the sum of its proper divisors (73541473580).

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

55156105164 is a wasteful number, since it uses less digits than its factorization.

55156105164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596342104 (or 4596342102 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 55156105164 in words is "fifty-five billion, one hundred fifty-six million, one hundred five thousand, one hundred sixty-four".