16564106236019 has 2 divisors, whose sum is σ = 16564106236020. Its totient is φ = 16564106236018.

The previous prime is 16564106235991. The next prime is 16564106236039. The reversal of 16564106236019 is 91063260146561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16564106236019 - 2¹² = 16564106231923 is a prime.

It is a super-2 number, since 2×16564106236019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16564106236039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282053118009 + 8282053118010.

It is an arithmetic number, because the mean of its divisors is an integer number (8282053118010).

Almost surely, 2^{16564106236019} is an apocalyptic number.

16564106236019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16564106236019 is an equidigital number, since it uses as much as digits as its factorization.

16564106236019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 16564106236019 in words is "sixteen trillion, five hundred sixty-four billion, one hundred six million, two hundred thirty-six thousand, nineteen".