12426666236 has 12 divisors (see below), whose sum is σ = 21765087960. Its totient is φ = 6208069680.

The previous prime is 12426666209. The next prime is 12426666271. The reversal of 12426666236 is 63266662421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310546 + ... + 1319993.

It is an arithmetic number, because the mean of its divisors is an integer number (1813757330).

Almost surely, 2^12426666236 is an apocalyptic number.

It is an amenable number.

12426666236 is a deficient number, since it is larger than the sum of its proper divisors (9338421724).

12426666236 is a wasteful number, since it uses less digits than its factorization.

12426666236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631724 (or 2631722 counting only the distinct ones).

The product of its digits is 746496, while the sum is 44.

The spelling of 12426666236 in words is "twelve billion, four hundred twenty-six million, six hundred sixty-six thousand, two hundred thirty-six".