16917000565 has 4 divisors (see below), whose sum is σ = 20300400684. Its totient is φ = 13533600448.

The previous prime is 16917000539. The next prime is 16917000571. The reversal of 16917000565 is 56500071961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56500071961 = 1013 ⋅55774997.

It can be written as a sum of positive squares in 2 ways, for example, as 11025210001 + 5891790564 = 105001^2 + 76758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16917000565 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1691700052 + ... + 1691700061.

It is an arithmetic number, because the mean of its divisors is an integer number (5075100171).

Almost surely, 2^16917000565 is an apocalyptic number.

It is an amenable number.

16917000565 is a deficient number, since it is larger than the sum of its proper divisors (3383400119).

16917000565 is an equidigital number, since it uses as much as digits as its factorization.

16917000565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383400118.

The product of its (nonzero) digits is 56700, while the sum is 40.

The spelling of 16917000565 in words is "sixteen billion, nine hundred seventeen million, five hundred sixty-five", and thus it is an aban number.