12537116563 has 2 divisors, whose sum is σ = 12537116564. Its totient is φ = 12537116562.

The previous prime is 12537116479. The next prime is 12537116591. The reversal of 12537116563 is 36561173521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12537116563 - 2²⁵ = 12503562131 is a prime.

It is not a weakly prime, because it can be changed into another prime (12537110563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268558281 + 6268558282.

It is an arithmetic number, because the mean of its divisors is an integer number (6268558282).

Almost surely, 2^12537116563 is an apocalyptic number.

12537116563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12537116563 is an equidigital number, since it uses as much as digits as its factorization.

12537116563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The spelling of 12537116563 in words is "twelve billion, five hundred thirty-seven million, one hundred sixteen thousand, five hundred sixty-three".