12135665174 has 16 divisors (see below), whose sum is σ = 18688167936. Its totient is φ = 5907628200.

The previous prime is 12135665167. The next prime is 12135665183. The reversal of 12135665174 is 47156653121.

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 7 ways as a sum of consecutive naturals, for example, 320012 + ... + 355919.

It is an arithmetic number, because the mean of its divisors is an integer number (1168010496).

Almost surely, 2^12135665174 is an apocalyptic number.

12135665174 is a deficient number, since it is larger than the sum of its proper divisors (6552502762).

12135665174 is a wasteful number, since it uses less digits than its factorization.

12135665174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676171.

The product of its digits is 151200, while the sum is 41.

The spelling of 12135665174 in words is "twelve billion, one hundred thirty-five million, six hundred sixty-five thousand, one hundred seventy-four".