13166604251 has 2 divisors, whose sum is σ = 13166604252. Its totient is φ = 13166604250.

The previous prime is 13166604233. The next prime is 13166604289. The reversal of 13166604251 is 15240666131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13166604251 - 2¹⁰ = 13166603227 is a prime.

It is not a weakly prime, because it can be changed into another prime (13166604221) 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, 6583302125 + 6583302126.

It is an arithmetic number, because the mean of its divisors is an integer number (6583302126).

Almost surely, 2^13166604251 is an apocalyptic number.

13166604251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13166604251 is an equidigital number, since it uses as much as digits as its factorization.

13166604251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 13166604251 in words is "thirteen billion, one hundred sixty-six million, six hundred four thousand, two hundred fifty-one".