55668288720 has 80 divisors (see below), whose sum is σ = 188260039872. Its totient is φ = 13495342080.

The previous prime is 55668288707. The next prime is 55668288749. The reversal of 55668288720 is 2788286655.

55668288720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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, 10540597 + ... + 10545876.

Almost surely, 2^55668288720 is an apocalyptic number.

It is an amenable number.

55668288720 is an abundant number, since it is smaller than the sum of its proper divisors (132591751152).

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

55668288720 is a wasteful number, since it uses less digits than its factorization.

55668288720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21086500 (or 21086494 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 55668288720 in words is "fifty-five billion, six hundred sixty-eight million, two hundred eighty-eight thousand, seven hundred twenty".