55011616156 has 36 divisors (see below), whose sum is σ = 112386578976. Its totient is φ = 23492481600.

The previous prime is 55011616141. The next prime is 55011616201. The reversal of 55011616156 is 65161611055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444340 + ... + 554491.

It is an arithmetic number, because the mean of its divisors is an integer number (3121849416).

Almost surely, 2^55011616156 is an apocalyptic number.

It is an amenable number.

55011616156 is an abundant number, since it is smaller than the sum of its proper divisors (57374962820).

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

55011616156 is a wasteful number, since it uses less digits than its factorization.

55011616156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999130 (or 999121 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 55011616156 in words is "fifty-five billion, eleven million, six hundred sixteen thousand, one hundred fifty-six".