55616530612 has 12 divisors (see below), whose sum is σ = 99959440420. Its totient is φ = 27056690496.

The previous prime is 55616530537. The next prime is 55616530657. The reversal of 55616530612 is 21603561655.

It can be written as a sum of positive squares in 2 ways, for example, as 42010241296 + 13606289316 = 204964^2 + 116646^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187893537 + ... + 187893832.

Almost surely, 2^55616530612 is an apocalyptic number.

It is an amenable number.

55616530612 is a deficient number, since it is larger than the sum of its proper divisors (44342909808).

55616530612 is a wasteful number, since it uses less digits than its factorization.

55616530612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375787410 (or 375787408 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 55616530612 in words is "fifty-five billion, six hundred sixteen million, five hundred thirty thousand, six hundred twelve".