12966966478 has 8 divisors (see below), whose sum is σ = 20594593872. Its totient is φ = 6102101856.

The previous prime is 12966966457. The next prime is 12966966503. The reversal of 12966966478 is 87466966921.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190690650 + ... + 190690717.

It is an arithmetic number, because the mean of its divisors is an integer number (2574324234).

Almost surely, 2^12966966478 is an apocalyptic number.

12966966478 is a deficient number, since it is larger than the sum of its proper divisors (7627627394).

12966966478 is a wasteful number, since it uses less digits than its factorization.

12966966478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381381386.

The product of its digits is 47029248, while the sum is 64.

The spelling of 12966966478 in words is "twelve billion, nine hundred sixty-six million, nine hundred sixty-six thousand, four hundred seventy-eight".