56540136384 has 84 divisors (see below), whose sum is σ = 162281439216. Its totient is φ = 18821203968.

The previous prime is 56540136371. The next prime is 56540136403. The reversal of 56540136384 is 48363104565.

56540136384 is a `hidden beast` number, since 5 + 6 + 5 + 4 + 0 + 1 + 3 + 638 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361912 + ... + 494024.

Almost surely, 2^56540136384 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 56540136384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81140719608).

56540136384 is an abundant number, since it is smaller than the sum of its proper divisors (105741302832).

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

56540136384 is a wasteful number, since it uses less digits than its factorization.

56540136384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132874 (or 132861 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 56540136384 in words is "fifty-six billion, five hundred forty million, one hundred thirty-six thousand, three hundred eighty-four".