516499994615 has 32 divisors (see below), whose sum is σ = 706037907456. Its totient is φ = 359052348160.

The previous prime is 516499994611. The next prime is 516499994641.

516499994615 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 516499994615 - 2² = 516499994611 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 (516499994611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1670282 + ... + 1955208.

It is an arithmetic number, because the mean of its divisors is an integer number (22063684608).

Almost surely, 2^516499994615 is an apocalyptic number.

516499994615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

516499994615 is a deficient number, since it is larger than the sum of its proper divisors (189537912841).

516499994615 is a wasteful number, since it uses less digits than its factorization.

516499994615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286399.

The product of its digits is 94478400, while the sum is 68.

The spelling of 516499994615 in words is "five hundred sixteen billion, four hundred ninety-nine million, nine hundred ninety-four thousand, six hundred fifteen".