16596395609 has 2 divisors, whose sum is σ = 16596395610. Its totient is φ = 16596395608.

The previous prime is 16596395597. The next prime is 16596395623. The reversal of 16596395609 is 90659369561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16588667209 + 7728400 = 128797^2 + 2780^2 .

It is an emirp because it is prime and its reverse (90659369561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16596395609 is a prime.

It is not a weakly prime, because it can be changed into another prime (16596395009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8298197804 + 8298197805.

It is an arithmetic number, because the mean of its divisors is an integer number (8298197805).

Almost surely, 2^16596395609 is an apocalyptic number.

It is an amenable number.

16596395609 is a deficient number, since it is larger than the sum of its proper divisors (1).

16596395609 is an equidigital number, since it uses as much as digits as its factorization.

16596395609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11809800, while the sum is 59.

The spelling of 16596395609 in words is "sixteen billion, five hundred ninety-six million, three hundred ninety-five thousand, six hundred nine".