12659632906 has 8 divisors (see below), whose sum is σ = 19815077664. Its totient is φ = 6054607020.

The previous prime is 12659632901. The next prime is 12659632907. The reversal of 12659632906 is 60923695621.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12659632906.

It is not an unprimeable number, because it can be changed into a prime (12659632901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137604660 + ... + 137604751.

It is an arithmetic number, because the mean of its divisors is an integer number (2476884708).

Almost surely, 2^12659632906 is an apocalyptic number.

12659632906 is a deficient number, since it is larger than the sum of its proper divisors (7155444758).

12659632906 is a wasteful number, since it uses less digits than its factorization.

12659632906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275209436.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 12659632906 in words is "twelve billion, six hundred fifty-nine million, six hundred thirty-two thousand, nine hundred six".