12583909402566 has 32 divisors (see below), whose sum is σ = 25216784107008. Its totient is φ = 4186476122400.

The previous prime is 12583909402531. The next prime is 12583909402627. The reversal of 12583909402566 is 66520490938521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141187416 + ... + 141276516.

It is an arithmetic number, because the mean of its divisors is an integer number (788024503344).

Almost surely, 2^{12583909402566} is an apocalyptic number.

12583909402566 is an abundant number, since it is smaller than the sum of its proper divisors (12632874704442).

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

12583909402566 is a wasteful number, since it uses less digits than its factorization.

12583909402566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134636.

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 12583909402566 in words is "twelve trillion, five hundred eighty-three billion, nine hundred nine million, four hundred two thousand, five hundred sixty-six".