55660216312 has 16 divisors (see below), whose sum is σ = 104370525360. Its totient is φ = 27828076224.

The previous prime is 55660216309. The next prime is 55660216397. The reversal of 55660216312 is 21361206655.

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, 134253 + ... + 359644.

It is an arithmetic number, because the mean of its divisors is an integer number (6523157835).

Almost surely, 2^55660216312 is an apocalyptic number.

It is an amenable number.

55660216312 is a deficient number, since it is larger than the sum of its proper divisors (48710309048).

55660216312 is a wasteful number, since it uses less digits than its factorization.

55660216312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507990 (or 507986 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 55660216312 in words is "fifty-five billion, six hundred sixty million, two hundred sixteen thousand, three hundred twelve".