516691564 has 6 divisors (see below), whose sum is σ = 904210244. Its totient is φ = 258345780.

The previous prime is 516691559. The next prime is 516691577. The reversal of 516691564 is 465196615.

It is a self number, because there is not a number n which added to its sum of digits gives 516691564.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64586442 + ... + 64586449.

Almost surely, 2^516691564 is an apocalyptic number.

It is an amenable number.

516691564 is a deficient number, since it is larger than the sum of its proper divisors (387518680).

516691564 is a wasteful number, since it uses less digits than its factorization.

516691564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129172895 (or 129172893 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 516691564 is about 22730.8504900279. The cubic root of 516691564 is about 802.4360971751.

The spelling of 516691564 in words is "five hundred sixteen million, six hundred ninety-one thousand, five hundred sixty-four".