16919143456559 has 2 divisors, whose sum is σ = 16919143456560. Its totient is φ = 16919143456558.

The previous prime is 16919143456471. The next prime is 16919143456577. The reversal of 16919143456559 is 95565434191961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16919143456559 - 2³² = 16914848489263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16919143456759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8459571728279 + 8459571728280.

It is an arithmetic number, because the mean of its divisors is an integer number (8459571728280).

Almost surely, 2^{16919143456559} is an apocalyptic number.

16919143456559 is a deficient number, since it is larger than the sum of its proper divisors (1).

16919143456559 is an equidigital number, since it uses as much as digits as its factorization.

16919143456559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464000, while the sum is 68.

The spelling of 16919143456559 in words is "sixteen trillion, nine hundred nineteen billion, one hundred forty-three million, four hundred fifty-six thousand, five hundred fifty-nine".