57716218564 has 9 divisors (see below), whose sum is σ = 101004223341. Its totient is φ = 28857869040.

The previous prime is 57716218529. The next prime is 57716218583. The reversal of 57716218564 is 46581261775.

The square root of 57716218564 is 240242.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 44665440964 + 13050777600 = 211342^2 + 114240^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 420424 + ... + 540544.

Almost surely, 2^57716218564 is an apocalyptic number.

57716218564 is the 240242-nd square number.

It is an amenable number.

57716218564 is a deficient number, since it is larger than the sum of its proper divisors (43288004777).

57716218564 is an frugal number, since it uses more digits than its factorization.

57716218564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240246 (or 120123 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 52.

The spelling of 57716218564 in words is "fifty-seven billion, seven hundred sixteen million, two hundred eighteen thousand, five hundred sixty-four".