516156130991 has 2 divisors, whose sum is σ = 516156130992. Its totient is φ = 516156130990.

The previous prime is 516156130961. The next prime is 516156131039. The reversal of 516156130991 is 199031651615.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516156130991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516156130961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258078065495 + 258078065496.

It is an arithmetic number, because the mean of its divisors is an integer number (258078065496).

Almost surely, 2^516156130991 is an apocalyptic number.

516156130991 is a deficient number, since it is larger than the sum of its proper divisors (1).

516156130991 is an equidigital number, since it uses as much as digits as its factorization.

516156130991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700, while the sum is 47.

The spelling of 516156130991 in words is "five hundred sixteen billion, one hundred fifty-six million, one hundred thirty thousand, nine hundred ninety-one".