56623702464 has 168 divisors, whose sum is σ = 187572883680. Its totient is φ = 15996321792.

The previous prime is 56623702453. The next prime is 56623702477. The reversal of 56623702464 is 46420732665.

56623702464 is a `hidden beast` number, since 566 + 2 + 3 + 7 + 0 + 24 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279952 + ... + 437744.

It is an arithmetic number, because the mean of its divisors is an integer number (1116505260).

Almost surely, 2^56623702464 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 56623702464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93786441840).

56623702464 is an abundant number, since it is smaller than the sum of its proper divisors (130949181216).

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

56623702464 is a wasteful number, since it uses less digits than its factorization.

56623702464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157907 (or 157894 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 56623702464 in words is "fifty-six billion, six hundred twenty-three million, seven hundred two thousand, four hundred sixty-four".