55668506880 has 576 divisors, whose sum is σ = 210452594688. Its totient is φ = 12275712000.

The previous prime is 55668506857. The next prime is 55668506893. The reversal of 55668506880 is 8860586655.

It is a self number, because there is not a number n which added to its sum of digits gives 55668506880.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 221786755 + ... + 221787005.

It is an arithmetic number, because the mean of its divisors is an integer number (365369088).

Almost surely, 2^55668506880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55668506880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105226297344).

55668506880 is an abundant number, since it is smaller than the sum of its proper divisors (154784087808).

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

55668506880 is a wasteful number, since it uses less digits than its factorization.

55668506880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 57.

The spelling of 55668506880 in words is "fifty-five billion, six hundred sixty-eight million, five hundred six thousand, eight hundred eighty".