56581324468448 has 48 divisors (see below), whose sum is σ = 119967176256480. Its totient is φ = 26113611219456.

The previous prime is 56581324468447. The next prime is 56581324468511. The reversal of 56581324468448 is 84486442318565.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56581324468447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10740686 + ... + 15117042.

It is an arithmetic number, because the mean of its divisors is an integer number (2499316172010).

Almost surely, 2^{56581324468448} is an apocalyptic number.

It is an amenable number.

56581324468448 is an abundant number, since it is smaller than the sum of its proper divisors (63385851788032).

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

56581324468448 is a wasteful number, since it uses less digits than its factorization.

56581324468448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407459 (or 4407451 counting only the distinct ones).

The product of its digits is 707788800, while the sum is 68.

The spelling of 56581324468448 in words is "fifty-six trillion, five hundred eighty-one billion, three hundred twenty-four million, four hundred sixty-eight thousand, four hundred forty-eight".