12664377605 has 8 divisors (see below), whose sum is σ = 16578821664. Its totient is φ = 9210456400.

The previous prime is 12664377547. The next prime is 12664377637. The reversal of 12664377605 is 50677346621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12664377605 - 2¹⁰ = 12664376581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12664377605.

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, 115130651 + ... + 115130760.

It is an arithmetic number, because the mean of its divisors is an integer number (2072352708).

Almost surely, 2^12664377605 is an apocalyptic number.

It is an amenable number.

12664377605 is a deficient number, since it is larger than the sum of its proper divisors (3914444059).

12664377605 is a wasteful number, since it uses less digits than its factorization.

12664377605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230261427.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 12664377605 in words is "twelve billion, six hundred sixty-four million, three hundred seventy-seven thousand, six hundred five".