12664668142 has 32 divisors (see below), whose sum is σ = 22431928320. Its totient is φ = 5247771840.

The previous prime is 12664668131. The next prime is 12664668151. The reversal of 12664668142 is 24186646621.

12664668142 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12664668092 and 12664668101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477063 + ... + 502909.

It is an arithmetic number, because the mean of its divisors is an integer number (700997760).

Almost surely, 2^12664668142 is an apocalyptic number.

12664668142 is a deficient number, since it is larger than the sum of its proper divisors (9767260178).

12664668142 is a wasteful number, since it uses less digits than its factorization.

12664668142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27016.

The product of its digits is 663552, while the sum is 46.

The spelling of 12664668142 in words is "twelve billion, six hundred sixty-four million, six hundred sixty-eight thousand, one hundred forty-two".