12625134665 has 32 divisors (see below), whose sum is σ = 17809206912. Its totient is φ = 8470656000.

The previous prime is 12625134653. The next prime is 12625134671. The reversal of 12625134665 is 56643152621.

It is a happy number.

It is not a de Polignac number, because 12625134665 - 2²⁶ = 12558025801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1541030 + ... + 1549200.

It is an arithmetic number, because the mean of its divisors is an integer number (556537716).

Almost surely, 2^12625134665 is an apocalyptic number.

It is an amenable number.

12625134665 is a deficient number, since it is larger than the sum of its proper divisors (5184072247).

12625134665 is a wasteful number, since it uses less digits than its factorization.

12625134665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10361.

The product of its digits is 259200, while the sum is 41.

The spelling of 12625134665 in words is "twelve billion, six hundred twenty-five million, one hundred thirty-four thousand, six hundred sixty-five".