14221666519 has 2 divisors, whose sum is σ = 14221666520. Its totient is φ = 14221666518.

The previous prime is 14221666427. The next prime is 14221666531. The reversal of 14221666519 is 91566612241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14221666519 - 2⁷ = 14221666391 is a prime.

It is a super-2 number, since 2×14221666519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14221666219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7110833259 + 7110833260.

It is an arithmetic number, because the mean of its divisors is an integer number (7110833260).

Almost surely, 2^14221666519 is an apocalyptic number.

14221666519 is a deficient number, since it is larger than the sum of its proper divisors (1).

14221666519 is an equidigital number, since it uses as much as digits as its factorization.

14221666519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The spelling of 14221666519 in words is "fourteen billion, two hundred twenty-one million, six hundred sixty-six thousand, five hundred nineteen".