56840423156 has 24 divisors (see below), whose sum is σ = 109527689376. Its totient is φ = 25595090720.

The previous prime is 56840423153. The next prime is 56840423173. The reversal of 56840423156 is 65132404865.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56840423153) 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, 6031871 + ... + 6041286.

It is an arithmetic number, because the mean of its divisors is an integer number (4563653724).

Almost surely, 2^56840423156 is an apocalyptic number.

It is an amenable number.

56840423156 is a deficient number, since it is larger than the sum of its proper divisors (52687266220).

56840423156 is a wasteful number, since it uses less digits than its factorization.

56840423156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12073279 (or 12073277 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 56840423156 in words is "fifty-six billion, eight hundred forty million, four hundred twenty-three thousand, one hundred fifty-six".