12522665456 has 40 divisors (see below), whose sum is σ = 27741542880. Its totient is φ = 5364382464.

The previous prime is 12522665447. The next prime is 12522665489. The reversal of 12522665456 is 65456622521.

It is a congruent number.

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, 229490 + ... + 278766.

It is an arithmetic number, because the mean of its divisors is an integer number (693538572).

Almost surely, 2^12522665456 is an apocalyptic number.

12522665456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12522665456 is an abundant number, since it is smaller than the sum of its proper divisors (15218877424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12522665456 is a wasteful number, since it uses less digits than its factorization.

12522665456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51561 (or 51555 counting only the distinct ones).

The product of its digits is 864000, while the sum is 44.

The spelling of 12522665456 in words is "twelve billion, five hundred twenty-two million, six hundred sixty-five thousand, four hundred fifty-six".