518474110664 has 16 divisors (see below), whose sum is σ = 973396587420. Its totient is φ = 258901687360.

The previous prime is 518474110639. The next prime is 518474110667. The reversal of 518474110664 is 466011474815.

It can be written as a sum of positive squares in 2 ways, for example, as 515796876100 + 2677234564 = 718190^2 + 51742^2 .

It is not an unprimeable number, because it can be changed into a prime (518474110667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41914427 + ... + 41926794.

Almost surely, 2^518474110664 is an apocalyptic number.

It is an amenable number.

518474110664 is a deficient number, since it is larger than the sum of its proper divisors (454922476756).

518474110664 is a wasteful number, since it uses less digits than its factorization.

518474110664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83842000 (or 83841996 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 518474110664 in words is "five hundred eighteen billion, four hundred seventy-four million, one hundred ten thousand, six hundred sixty-four".