516540216144233 has 2 divisors, whose sum is σ = 516540216144234. Its totient is φ = 516540216144232.

The previous prime is 516540216144229. The next prime is 516540216144313. The reversal of 516540216144233 is 332441612045615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310530372784384 + 206009843359849 = 17621872^2 + 14353043^2 .

It is a cyclic number.

It is not a de Polignac number, because 516540216144233 - 2² = 516540216144229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (516540216144833) 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 as a sum of consecutive naturals, namely, 258270108072116 + 258270108072117.

It is an arithmetic number, because the mean of its divisors is an integer number (258270108072117).

Almost surely, 2^{516540216144233} is an apocalyptic number.

It is an amenable number.

516540216144233 is a deficient number, since it is larger than the sum of its proper divisors (1).

516540216144233 is an equidigital number, since it uses as much as digits as its factorization.

516540216144233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 47.

Adding to 516540216144233 its reverse (332441612045615), we get a palindrome (848981828189848).

The spelling of 516540216144233 in words is "five hundred sixteen trillion, five hundred forty billion, two hundred sixteen million, one hundred forty-four thousand, two hundred thirty-three".