12609166707 has 24 divisors (see below), whose sum is σ = 19226235600. Its totient is φ = 7941086208.

The previous prime is 12609166649. The next prime is 12609166723. The reversal of 12609166707 is 70766190621.

It is a happy number.

It is not a de Polignac number, because 12609166707 - 2¹⁰ = 12609165683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12609166727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44082 + ... + 164807.

It is an arithmetic number, because the mean of its divisors is an integer number (801093150).

Almost surely, 2^12609166707 is an apocalyptic number.

12609166707 is a deficient number, since it is larger than the sum of its proper divisors (6617068893).

12609166707 is a wasteful number, since it uses less digits than its factorization.

12609166707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209267 (or 209264 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 12609166707 in words is "twelve billion, six hundred nine million, one hundred sixty-six thousand, seven hundred seven".