55156163136 has 28 divisors (see below), whose sum is σ = 145934015472. Its totient is φ = 18385387648.

The previous prime is 55156163099. The next prime is 55156163141. The reversal of 55156163136 is 63136165155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143635650 + ... + 143636033.

It is an arithmetic number, because the mean of its divisors is an integer number (5211929124).

Almost surely, 2^55156163136 is an apocalyptic number.

It is an amenable number.

55156163136 is an abundant number, since it is smaller than the sum of its proper divisors (90777852336).

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

55156163136 is a wasteful number, since it uses less digits than its factorization.

55156163136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287271698 (or 287271688 counting only the distinct ones).

The product of its digits is 243000, while the sum is 42.

The spelling of 55156163136 in words is "fifty-five billion, one hundred fifty-six million, one hundred sixty-three thousand, one hundred thirty-six".