12641416465 has 8 divisors (see below), whose sum is σ = 15213418560. Its totient is φ = 10083987312.

The previous prime is 12641416441. The next prime is 12641416507. The reversal of 12641416465 is 56461414621.

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 12641416465 - 2⁹ = 12641415953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3641325 + ... + 3644794.

It is an arithmetic number, because the mean of its divisors is an integer number (1901677320).

Almost surely, 2^12641416465 is an apocalyptic number.

It is an amenable number.

12641416465 is a deficient number, since it is larger than the sum of its proper divisors (2572002095).

12641416465 is an equidigital number, since it uses as much as digits as its factorization.

12641416465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7286471.

The product of its digits is 138240, while the sum is 40.

The spelling of 12641416465 in words is "twelve billion, six hundred forty-one million, four hundred sixteen thousand, four hundred sixty-five".