516321163 has 2 divisors, whose sum is σ = 516321164. Its totient is φ = 516321162.

The previous prime is 516321149. The next prime is 516321187. The reversal of 516321163 is 361123615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516321163 - 2⁵ = 516321131 is a prime.

It is not a weakly prime, because it can be changed into another prime (516321193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258160581 + 258160582.

It is an arithmetic number, because the mean of its divisors is an integer number (258160582).

Almost surely, 2^516321163 is an apocalyptic number.

516321163 is a deficient number, since it is larger than the sum of its proper divisors (1).

516321163 is an equidigital number, since it uses as much as digits as its factorization.

516321163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 516321163 is about 22722.7014899197. The cubic root of 516321163 is about 802.2443037175.

Adding to 516321163 its reverse (361123615), we get a palindrome (877444778).

The spelling of 516321163 in words is "five hundred sixteen million, three hundred twenty-one thousand, one hundred sixty-three".