16564044336079 has 2 divisors, whose sum is σ = 16564044336080. Its totient is φ = 16564044336078.

The previous prime is 16564044336019. The next prime is 16564044336121. The reversal of 16564044336079 is 97063344046561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16564044336079 - 2¹¹ = 16564044334031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16564044336019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282022168039 + 8282022168040.

It is an arithmetic number, because the mean of its divisors is an integer number (8282022168040).

Almost surely, 2^{16564044336079} is an apocalyptic number.

16564044336079 is a deficient number, since it is larger than the sum of its proper divisors (1).

16564044336079 is an equidigital number, since it uses as much as digits as its factorization.

16564044336079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39191040, while the sum is 58.

The spelling of 16564044336079 in words is "sixteen trillion, five hundred sixty-four billion, forty-four million, three hundred thirty-six thousand, seventy-nine".