516663255049771 has 2 divisors, whose sum is σ = 516663255049772. Its totient is φ = 516663255049770.

The previous prime is 516663255049751. The next prime is 516663255049789. The reversal of 516663255049771 is 177940552366615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 516663255049771 - 2¹⁵ = 516663255017003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 516663255049697 and 516663255049706.

It is not a weakly prime, because it can be changed into another prime (516663255049751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258331627524885 + 258331627524886.

It is an arithmetic number, because the mean of its divisors is an integer number (258331627524886).

Almost surely, 2^{516663255049771} is an apocalyptic number.

516663255049771 is a deficient number, since it is larger than the sum of its proper divisors (1).

516663255049771 is an equidigital number, since it uses as much as digits as its factorization.

516663255049771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768000, while the sum is 67.

The spelling of 516663255049771 in words is "five hundred sixteen trillion, six hundred sixty-three billion, two hundred fifty-five million, forty-nine thousand, seven hundred seventy-one".