12641412665 has 8 divisors (see below), whose sum is σ = 17336794560. Its totient is φ = 8668397232.

The previous prime is 12641412613. The next prime is 12641412683. The reversal of 12641412665 is 56621414621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12641412665 - 2¹² = 12641408569 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 180591575 + ... + 180591644.

It is an arithmetic number, because the mean of its divisors is an integer number (2167099320).

Almost surely, 2^12641412665 is an apocalyptic number.

It is an amenable number.

12641412665 is a deficient number, since it is larger than the sum of its proper divisors (4695381895).

12641412665 is an equidigital number, since it uses as much as digits as its factorization.

12641412665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361183231.

The product of its digits is 69120, while the sum is 38.

The spelling of 12641412665 in words is "twelve billion, six hundred forty-one million, four hundred twelve thousand, six hundred sixty-five".