16515560065 has 16 divisors (see below), whose sum is σ = 20376230400. Its totient is φ = 12844517440.

The previous prime is 16515560053. The next prime is 16515560071. The reversal of 16515560065 is 56006551561.

16515560065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16515560065 - 2⁷ = 16515559937 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200821 + ... + 270850.

It is an arithmetic number, because the mean of its divisors is an integer number (1273514400).

Almost surely, 2^16515560065 is an apocalyptic number.

It is an amenable number.

16515560065 is a deficient number, since it is larger than the sum of its proper divisors (3860670335).

16515560065 is a wasteful number, since it uses less digits than its factorization.

16515560065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471872.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 16515560065 in words is "sixteen billion, five hundred fifteen million, five hundred sixty thousand, sixty-five".