516811564 has 24 divisors (see below), whose sum is σ = 952922880. Its totient is φ = 244766544.

The previous prime is 516811553. The next prime is 516811579. The reversal of 516811564 is 465118615.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17794 + ... + 36745.

It is an arithmetic number, because the mean of its divisors is an integer number (39705120).

Almost surely, 2^516811564 is an apocalyptic number.

It is an amenable number.

516811564 is a deficient number, since it is larger than the sum of its proper divisors (436111316).

516811564 is a wasteful number, since it uses less digits than its factorization.

516811564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54669 (or 54667 counting only the distinct ones).

The product of its digits is 28800, while the sum is 37.

The square root of 516811564 is about 22733.4899212593. The cubic root of 516811564 is about 802.4982134580.

The spelling of 516811564 in words is "five hundred sixteen million, eight hundred eleven thousand, five hundred sixty-four".