13166613623519 has 2 divisors, whose sum is σ = 13166613623520. Its totient is φ = 13166613623518.

The previous prime is 13166613623479. The next prime is 13166613623617. The reversal of 13166613623519 is 91532631666131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13166613623519 - 2³⁶ = 13097894146783 is a prime.

It is a super-2 number, since 2×13166613623519² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13166613623419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6583306811759 + 6583306811760.

It is an arithmetic number, because the mean of its divisors is an integer number (6583306811760).

Almost surely, 2^{13166613623519} is an apocalyptic number.

13166613623519 is a deficient number, since it is larger than the sum of its proper divisors (1).

13166613623519 is an equidigital number, since it uses as much as digits as its factorization.

13166613623519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 53.

The spelling of 13166613623519 in words is "thirteen trillion, one hundred sixty-six billion, six hundred thirteen million, six hundred twenty-three thousand, five hundred nineteen".