55668659832 has 128 divisors (see below), whose sum is σ = 155835187200. Its totient is φ = 18412732800.

The previous prime is 55668659819. The next prime is 55668659861. The reversal of 55668659832 is 23895686655.

55668659832 is a `hidden beast` number, since 5 + 5 + 6 + 6 + 8 + 6 + 598 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 55668659832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19017553 + ... + 19020479.

It is an arithmetic number, because the mean of its divisors is an integer number (1217462400).

Almost surely, 2^55668659832 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 55668659832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77917593600).

55668659832 is an abundant number, since it is smaller than the sum of its proper divisors (100166527368).

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

55668659832 is a wasteful number, since it uses less digits than its factorization.

55668659832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3594 (or 3584 counting only the distinct ones).

The product of its digits is 93312000, while the sum is 63.

The spelling of 55668659832 in words is "fifty-five billion, six hundred sixty-eight million, six hundred fifty-nine thousand, eight hundred thirty-two".