56645234191872 has 400 divisors, whose sum is σ = 174333578780592. Its totient is φ = 18298109952000.

The previous prime is 56645234191813. The next prime is 56645234191901. The reversal of 56645234191872 is 27819143254665.

It is a happy number.

56645234191872 is a `hidden beast` number, since 5 + 6 + 64 + 52 + 341 + 9 + 187 + 2 = 666.

56645234191872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 385076928 + ... + 385224000.

Almost surely, 2^{56645234191872} 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 56645234191872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87166789390296).

56645234191872 is an abundant number, since it is smaller than the sum of its proper divisors (117688344588720).

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

56645234191872 is a wasteful number, since it uses less digits than its factorization.

56645234191872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147391 (or 147366 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 56645234191872 in words is "fifty-six trillion, six hundred forty-five billion, two hundred thirty-four million, one hundred ninety-one thousand, eight hundred seventy-two".