56451731466 has 24 divisors (see below), whose sum is σ = 122256414720. Its totient is φ = 17369763216.

The previous prime is 56451731447. The next prime is 56451731467. The reversal of 56451731466 is 66413715465.

It is not an unprimeable number, because it can be changed into a prime (56451731467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27835146 + ... + 27837173.

It is an arithmetic number, because the mean of its divisors is an integer number (5094017280).

Almost surely, 2^56451731466 is an apocalyptic number.

56451731466 is an abundant number, since it is smaller than the sum of its proper divisors (65804683254).

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

56451731466 is a wasteful number, since it uses less digits than its factorization.

56451731466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55672350 (or 55672337 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The spelling of 56451731466 in words is "fifty-six billion, four hundred fifty-one million, seven hundred thirty-one thousand, four hundred sixty-six".