56040140640 has 96 divisors (see below), whose sum is σ = 192574319616. Its totient is φ = 13585487360.

The previous prime is 56040140621. The next prime is 56040140707. The reversal of 56040140640 is 4604104065.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 56040140598 and 56040140607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5301552 + ... + 5312111.

It is an arithmetic number, because the mean of its divisors is an integer number (2005982496).

Almost surely, 2^56040140640 is an apocalyptic number.

It is an amenable number.

56040140640 is an abundant number, since it is smaller than the sum of its proper divisors (136534178976).

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

56040140640 is a wasteful number, since it uses less digits than its factorization.

56040140640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10613692 (or 10613684 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 56040140640 in words is "fifty-six billion, forty million, one hundred forty thousand, six hundred forty".