14660998621 has 2 divisors, whose sum is σ = 14660998622. Its totient is φ = 14660998620.

The previous prime is 14660998607. The next prime is 14660998771. The reversal of 14660998621 is 12689906641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10947436900 + 3713561721 = 104630^2 + 60939^2 .

It is an emirp because it is prime and its reverse (12689906641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14660998621 - 2⁹ = 14660998109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14660998601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7330499310 + 7330499311.

It is an arithmetic number, because the mean of its divisors is an integer number (7330499311).

Almost surely, 2^14660998621 is an apocalyptic number.

It is an amenable number.

14660998621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14660998621 is an equidigital number, since it uses as much as digits as its factorization.

14660998621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 14660998621 in words is "fourteen billion, six hundred sixty million, nine hundred ninety-eight thousand, six hundred twenty-one".