12666133364 has 12 divisors (see below), whose sum is σ = 22174440288. Its totient is φ = 6330579000.

The previous prime is 12666133349. The next prime is 12666133427. The reversal of 12666133364 is 46333166621.

It is a happy number.

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, 610442 + ... + 630849.

It is an arithmetic number, because the mean of its divisors is an integer number (1847870024).

Almost surely, 2^12666133364 is an apocalyptic number.

It is an amenable number.

12666133364 is a deficient number, since it is larger than the sum of its proper divisors (9508306924).

12666133364 is a wasteful number, since it uses less digits than its factorization.

12666133364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243846 (or 1243844 counting only the distinct ones).

The product of its digits is 279936, while the sum is 41.

Adding to 12666133364 its reverse (46333166621), we get a palindrome (58999299985).

The spelling of 12666133364 in words is "twelve billion, six hundred sixty-six million, one hundred thirty-three thousand, three hundred sixty-four".