516661970163 has 32 divisors (see below), whose sum is σ = 706717519872. Its totient is φ = 335654668800.

The previous prime is 516661970131. The next prime is 516661970179. The reversal of 516661970163 is 361079166615.

It is not a de Polignac number, because 516661970163 - 2⁵ = 516661970131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516661970113) 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 31 ways as a sum of consecutive naturals, for example, 6911595 + ... + 6985947.

It is an arithmetic number, because the mean of its divisors is an integer number (22084922496).

Almost surely, 2^516661970163 is an apocalyptic number.

516661970163 is a deficient number, since it is larger than the sum of its proper divisors (190055549709).

516661970163 is a wasteful number, since it uses less digits than its factorization.

516661970163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74795.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 516661970163 in words is "five hundred sixteen billion, six hundred sixty-one million, nine hundred seventy thousand, one hundred sixty-three".