12659159506 has 12 divisors (see below), whose sum is σ = 22088941758. Its totient is φ = 5425354032.

The previous prime is 12659159453. The next prime is 12659159519. The reversal of 12659159506 is 60595195621.

It can be written as a sum of positive squares in only one way, i.e., 7191888025 + 5467271481 = 84805^2 + 73941^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 12659159506.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64587451 + ... + 64587646.

Almost surely, 2^12659159506 is an apocalyptic number.

12659159506 is a deficient number, since it is larger than the sum of its proper divisors (9429782252).

12659159506 is a wasteful number, since it uses less digits than its factorization.

12659159506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129175113 (or 129175106 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 49.

The spelling of 12659159506 in words is "twelve billion, six hundred fifty-nine million, one hundred fifty-nine thousand, five hundred six".