516516791 has 12 divisors (see below), whose sum is σ = 604833840. Its totient is φ = 439790400.

The previous prime is 516516733. The next prime is 516516821. The reversal of 516516791 is 197615615.

It is not a de Polignac number, because 516516791 - 2¹⁸ = 516254647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516516991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27506 + ... + 42303.

It is an arithmetic number, because the mean of its divisors is an integer number (50402820).

Almost surely, 2^516516791 is an apocalyptic number.

516516791 is a deficient number, since it is larger than the sum of its proper divisors (88317049).

516516791 is a wasteful number, since it uses less digits than its factorization.

516516791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69974 (or 69967 counting only the distinct ones).

The product of its digits is 56700, while the sum is 41.

The square root of 516516791 is about 22727.0057640684. The cubic root of 516516791 is about 802.3456112260.

The spelling of 516516791 in words is "five hundred sixteen million, five hundred sixteen thousand, seven hundred ninety-one".