12641044516 has 6 divisors (see below), whose sum is σ = 22121827910. Its totient is φ = 6320522256.

The previous prime is 12641044511. The next prime is 12641044529. The reversal of 12641044516 is 61544014621.

It can be written as a sum of positive squares in only one way, i.e., 11015342116 + 1625702400 = 104954^2 + 40320^2 .

It is not an unprimeable number, because it can be changed into a prime (12641044511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580130561 + ... + 1580130568.

Almost surely, 2^12641044516 is an apocalyptic number.

It is an amenable number.

12641044516 is a deficient number, since it is larger than the sum of its proper divisors (9480783394).

12641044516 is a wasteful number, since it uses less digits than its factorization.

12641044516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160261133 (or 3160261131 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 12641044516 in words is "twelve billion, six hundred forty-one million, forty-four thousand, five hundred sixteen".