516343311531 has 32 divisors (see below), whose sum is σ = 806440965120. Its totient is φ = 325867905792.

The previous prime is 516343311529. The next prime is 516343311571. The reversal of 516343311531 is 135113343615.

516343311531 is a `hidden beast` number, since 5 + 1 + 634 + 3 + 3 + 1 + 15 + 3 + 1 = 666.

It is not a de Polignac number, because 516343311531 - 2¹ = 516343311529 is a prime.

It is a super-2 number, since 2×516343311531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (516343311571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4225695 + ... + 4346168.

It is an arithmetic number, because the mean of its divisors is an integer number (25201280160).

Almost surely, 2^516343311531 is an apocalyptic number.

516343311531 is a deficient number, since it is larger than the sum of its proper divisors (290097653589).

516343311531 is a wasteful number, since it uses less digits than its factorization.

516343311531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571992 (or 8571986 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 516343311531 in words is "five hundred sixteen billion, three hundred forty-three million, three hundred eleven thousand, five hundred thirty-one".