516516865 has 32 divisors (see below), whose sum is σ = 687522816. Its totient is φ = 370529280.

The previous prime is 516516863. The next prime is 516516877. The reversal of 516516865 is 568615615.

It is not a de Polignac number, because 516516865 - 2¹ = 516516863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516516863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 842299 + ... + 842911.

It is an arithmetic number, because the mean of its divisors is an integer number (21485088).

Almost surely, 2^516516865 is an apocalyptic number.

It is an amenable number.

516516865 is a deficient number, since it is larger than the sum of its proper divisors (171005951).

516516865 is a wasteful number, since it uses less digits than its factorization.

516516865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089.

The product of its digits is 216000, while the sum is 43.

The square root of 516516865 is about 22727.0073920875. The cubic root of 516516865 is about 802.3456495426.

The spelling of 516516865 in words is "five hundred sixteen million, five hundred sixteen thousand, eight hundred sixty-five".