55105443215568 has 30 divisors (see below), whose sum is σ = 154218705666194. Its totient is φ = 18368481071808.

The previous prime is 55105443215549. The next prime is 55105443215573. The reversal of 55105443215568 is 86551234450155.

55105443215568 is a `hidden beast` number, since 5 + 5 + 1 + 0 + 5 + 44 + 32 + 1 + 5 + 568 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48825547550784 + 6279895664784 = 6987528^2 + 2505972^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191338344355 + ... + 191338344642.

Almost surely, 2^{55105443215568} is an apocalyptic number.

It is an amenable number.

55105443215568 is an abundant number, since it is smaller than the sum of its proper divisors (99113262450626).

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

55105443215568 is a wasteful number, since it uses less digits than its factorization.

55105443215568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382676689011 (or 382676689002 counting only the distinct ones).

The product of its (nonzero) digits is 14400000, while the sum is 54.

The spelling of 55105443215568 in words is "fifty-five trillion, one hundred five billion, four hundred forty-three million, two hundred fifteen thousand, five hundred sixty-eight".