12662645659 has 8 divisors (see below), whose sum is σ = 12781558080. Its totient is φ = 12544283136.

The previous prime is 12662645657. The next prime is 12662645663. The reversal of 12662645659 is 95654626621.

12662645659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12662645659 - 2¹ = 12662645657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12662645657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91132 + ... + 183385.

It is an arithmetic number, because the mean of its divisors is an integer number (1597694760).

Almost surely, 2^12662645659 is an apocalyptic number.

12662645659 is a deficient number, since it is larger than the sum of its proper divisors (118912421).

12662645659 is a wasteful number, since it uses less digits than its factorization.

12662645659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274949.

The product of its digits is 4665600, while the sum is 52.

The spelling of 12662645659 in words is "twelve billion, six hundred sixty-two million, six hundred forty-five thousand, six hundred fifty-nine".