12566614163 has 4 divisors (see below), whose sum is σ = 12858861048. Its totient is φ = 12274367280.

The previous prime is 12566614157. The next prime is 12566614169. The reversal of 12566614163 is 36141666521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12566614157) and next prime (12566614169).

It is a cyclic number.

It is not a de Polignac number, because 12566614163 - 2⁸ = 12566613907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12566614163.

It is not an unprimeable number, because it can be changed into a prime (12566614169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146123378 + ... + 146123463.

It is an arithmetic number, because the mean of its divisors is an integer number (3214715262).

Almost surely, 2^12566614163 is an apocalyptic number.

12566614163 is a deficient number, since it is larger than the sum of its proper divisors (292246885).

12566614163 is an equidigital number, since it uses as much as digits as its factorization.

12566614163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292246884.

The product of its digits is 155520, while the sum is 41.

The spelling of 12566614163 in words is "twelve billion, five hundred sixty-six million, six hundred fourteen thousand, one hundred sixty-three".