55839023974656 has 864 divisors, whose sum is σ = 186062592748032. Its totient is φ = 15970304655360.

The previous prime is 55839023974631. The next prime is 55839023974661. The reversal of 55839023974656 is 65647932093855.

55839023974656 is a `hidden beast` number, since 5 + 58 + 3 + 9 + 0 + 23 + 97 + 465 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7428361810 + ... + 7428369326.

It is an arithmetic number, because the mean of its divisors is an integer number (215350223088).

Almost surely, 2^{55839023974656} 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 55839023974656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93031296374016).

55839023974656 is an abundant number, since it is smaller than the sum of its proper divisors (130223568773376).

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

55839023974656 is a wasteful number, since it uses less digits than its factorization.

55839023974656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7879 (or 7862 counting only the distinct ones).

The product of its (nonzero) digits is 1469664000, while the sum is 72.

The spelling of 55839023974656 in words is "fifty-five trillion, eight hundred thirty-nine billion, twenty-three million, nine hundred seventy-four thousand, six hundred fifty-six".