14664665321 has 2 divisors, whose sum is σ = 14664665322. Its totient is φ = 14664665320.

The previous prime is 14664665297. The next prime is 14664665363. The reversal of 14664665321 is 12356646641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14636160400 + 28504921 = 120980^2 + 5339^2 .

It is an emirp because it is prime and its reverse (12356646641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14664665321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14664665021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7332332660 + 7332332661.

It is an arithmetic number, because the mean of its divisors is an integer number (7332332661).

Almost surely, 2^14664665321 is an apocalyptic number.

It is an amenable number.

14664665321 is a deficient number, since it is larger than the sum of its proper divisors (1).

14664665321 is an equidigital number, since it uses as much as digits as its factorization.

14664665321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 44.

The spelling of 14664665321 in words is "fourteen billion, six hundred sixty-four million, six hundred sixty-five thousand, three hundred twenty-one".