12579423166 has 32 divisors (see below), whose sum is σ = 19946953728. Its totient is φ = 5937983040.

The previous prime is 12579423163. The next prime is 12579423179. The reversal of 12579423166 is 66132497521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12579423163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1469250 + ... + 1477786.

It is an arithmetic number, because the mean of its divisors is an integer number (623342304).

Almost surely, 2^12579423166 is an apocalyptic number.

12579423166 is a deficient number, since it is larger than the sum of its proper divisors (7367530562).

12579423166 is a wasteful number, since it uses less digits than its factorization.

12579423166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976.

The product of its digits is 544320, while the sum is 46.

The spelling of 12579423166 in words is "twelve billion, five hundred seventy-nine million, four hundred twenty-three thousand, one hundred sixty-six".