516533112449 has 2 divisors, whose sum is σ = 516533112450. Its totient is φ = 516533112448.

The previous prime is 516533112397. The next prime is 516533112517. The reversal of 516533112449 is 944211335615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491917071424 + 24616041025 = 701368^2 + 156895^2 .

It is a cyclic number.

It is not a de Polignac number, because 516533112449 - 2²⁴ = 516516335233 is a prime.

It is not a weakly prime, because it can be changed into another prime (516533118449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258266556224 + 258266556225.

It is an arithmetic number, because the mean of its divisors is an integer number (258266556225).

Almost surely, 2^516533112449 is an apocalyptic number.

It is an amenable number.

516533112449 is a deficient number, since it is larger than the sum of its proper divisors (1).

516533112449 is an equidigital number, since it uses as much as digits as its factorization.

516533112449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The spelling of 516533112449 in words is "five hundred sixteen billion, five hundred thirty-three million, one hundred twelve thousand, four hundred forty-nine".