12266506544 has 20 divisors (see below), whose sum is σ = 23861050920. Its totient is φ = 6108816000.

The previous prime is 12266506493. The next prime is 12266506619. The reversal of 12266506544 is 44560566221.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523189 + ... + 1531220.

It is an arithmetic number, because the mean of its divisors is an integer number (1193052546).

Almost surely, 2^12266506544 is an apocalyptic number.

It is an amenable number.

12266506544 is a deficient number, since it is larger than the sum of its proper divisors (11594544376).

12266506544 is a wasteful number, since it uses less digits than its factorization.

12266506544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054668 (or 3054662 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 12266506544 in words is "twelve billion, two hundred sixty-six million, five hundred six thousand, five hundred forty-four".