55565237612120 has 64 divisors (see below), whose sum is σ = 129649099068000. Its totient is φ = 21407209141248.

The previous prime is 55565237612113. The next prime is 55565237612173. The reversal of 55565237612120 is 2121673256555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58084322 + ... + 59033201.

Almost surely, 2^{55565237612120} is an apocalyptic number.

It is an amenable number.

55565237612120 is an abundant number, since it is smaller than the sum of its proper divisors (74083861455880).

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

55565237612120 is a wasteful number, since it uses less digits than its factorization.

55565237612120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117117972 (or 117117968 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 50.

The spelling of 55565237612120 in words is "fifty-five trillion, five hundred sixty-five billion, two hundred thirty-seven million, six hundred twelve thousand, one hundred twenty".