12259841556 has 24 divisors (see below), whose sum is σ = 28750052800. Its totient is φ = 4066077312.

The previous prime is 12259841527. The next prime is 12259841563. The reversal of 12259841556 is 65514895221.

It is a super-2 number, since 2×12259841556² (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 7 ways as a sum of consecutive naturals, for example, 2564581 + ... + 2569356.

Almost surely, 2^12259841556 is an apocalyptic number.

It is an amenable number.

12259841556 is an abundant number, since it is smaller than the sum of its proper divisors (16490211244).

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

12259841556 is a wasteful number, since it uses less digits than its factorization.

12259841556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134143 (or 5134141 counting only the distinct ones).

The product of its digits is 864000, while the sum is 48.

The spelling of 12259841556 in words is "twelve billion, two hundred fifty-nine million, eight hundred forty-one thousand, five hundred fifty-six".