12665425822 has 48 divisors (see below), whose sum is σ = 22741544448. Its totient is φ = 5271013440.

The previous prime is 12665425811. The next prime is 12665425831. The reversal of 12665425822 is 22852456621.

It is a happy number.

It is a super-2 number, since 2×12665425822² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2016547 + ... + 2022817.

It is an arithmetic number, because the mean of its divisors is an integer number (473782176).

Almost surely, 2^12665425822 is an apocalyptic number.

12665425822 is a deficient number, since it is larger than the sum of its proper divisors (10076118626).

12665425822 is a wasteful number, since it uses less digits than its factorization.

12665425822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6881 (or 6874 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The spelling of 12665425822 in words is "twelve billion, six hundred sixty-five million, four hundred twenty-five thousand, eight hundred twenty-two".