55102128516 has 36 divisors (see below), whose sum is σ = 139379992752. Its totient is φ = 18354973104.

The previous prime is 55102128493. The next prime is 55102128533. The reversal of 55102128516 is 61582120155.

55102128516 is a `hidden beast` number, since 5 + 5 + 10 + 2 + 128 + 516 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

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, 462666 + ... + 569441.

Almost surely, 2^55102128516 is an apocalyptic number.

It is an amenable number.

55102128516 is an abundant number, since it is smaller than the sum of its proper divisors (84277864236).

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

55102128516 is a wasteful number, since it uses less digits than its factorization.

55102128516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033600 (or 1033595 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The spelling of 55102128516 in words is "fifty-five billion, one hundred two million, one hundred twenty-eight thousand, five hundred sixteen".