12850566558 has 16 divisors (see below), whose sum is σ = 25710744576. Its totient is φ = 4281920280.

The previous prime is 12850566517. The next prime is 12850566569. The reversal of 12850566558 is 85566505821.

It is a self number, because there is not a number n which added to its sum of digits gives 12850566558.

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, 383038 + ... + 415233.

It is an arithmetic number, because the mean of its divisors is an integer number (1606921536).

Almost surely, 2^12850566558 is an apocalyptic number.

12850566558 is an abundant number, since it is smaller than the sum of its proper divisors (12860178018).

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

12850566558 is a wasteful number, since it uses less digits than its factorization.

12850566558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800959.

The product of its (nonzero) digits is 2880000, while the sum is 51.

The spelling of 12850566558 in words is "twelve billion, eight hundred fifty million, five hundred sixty-six thousand, five hundred fifty-eight".