12664415126 has 16 divisors (see below), whose sum is σ = 21205533888. Its totient is φ = 5622678600.

The previous prime is 12664415063. The next prime is 12664415171. The reversal of 12664415126 is 62151446621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12664415126.

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, 6692720 + ... + 6694611.

It is an arithmetic number, because the mean of its divisors is an integer number (1325345868).

Almost surely, 2^12664415126 is an apocalyptic number.

12664415126 is a deficient number, since it is larger than the sum of its proper divisors (8541118762).

12664415126 is a wasteful number, since it uses less digits than its factorization.

12664415126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13387387.

The product of its digits is 69120, while the sum is 38.

The spelling of 12664415126 in words is "twelve billion, six hundred sixty-four million, four hundred fifteen thousand, one hundred twenty-six".