12659061699 has 16 divisors (see below), whose sum is σ = 19359139840. Its totient is φ = 8167136040.

The previous prime is 12659061599. The next prime is 12659061719. The reversal of 12659061699 is 99616095621.

12659061699 is a `hidden beast` number, since 12 + 6 + 5 + 9 + 0 + 616 + 9 + 9 = 666.

It is not a de Polignac number, because 12659061699 - 2¹² = 12659057603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12659061599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7561327 + ... + 7563000.

It is an arithmetic number, because the mean of its divisors is an integer number (1209946240).

Almost surely, 2^12659061699 is an apocalyptic number.

12659061699 is a deficient number, since it is larger than the sum of its proper divisors (6700078141).

12659061699 is a wasteful number, since it uses less digits than its factorization.

12659061699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15124367 (or 15124361 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 12659061699 in words is "twelve billion, six hundred fifty-nine million, sixty-one thousand, six hundred ninety-nine".