56471216544464 has 20 divisors (see below), whose sum is σ = 109486266081156. Its totient is φ = 28216696265472.

The previous prime is 56471216544439. The next prime is 56471216544487. The reversal of 56471216544464 is 46444561217465.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22813118110864 + 33658098433600 = 4776308^2 + 5801560^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181975789 + ... + 1182023564.

Almost surely, 2^{56471216544464} is an apocalyptic number.

It is an amenable number.

56471216544464 is a deficient number, since it is larger than the sum of its proper divisors (53015049536692).

56471216544464 is a wasteful number, since it uses less digits than its factorization.

56471216544464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364000854 (or 2364000848 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 59.

The spelling of 56471216544464 in words is "fifty-six trillion, four hundred seventy-one billion, two hundred sixteen million, five hundred forty-four thousand, four hundred sixty-four".