16516530161 has 16 divisors (see below), whose sum is σ = 17343590400. Its totient is φ = 15698762640.

The previous prime is 16516530139. The next prime is 16516530187. The reversal of 16516530161 is 16103561561.

It is a cyclic number.

It is not a de Polignac number, because 16516530161 - 2¹⁰ = 16516529137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16516532161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4497356 + ... + 4501026.

It is an arithmetic number, because the mean of its divisors is an integer number (1083974400).

Almost surely, 2^16516530161 is an apocalyptic number.

It is an amenable number.

16516530161 is a deficient number, since it is larger than the sum of its proper divisors (827060239).

16516530161 is a wasteful number, since it uses less digits than its factorization.

16516530161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876.

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 16516530161 in words is "sixteen billion, five hundred sixteen million, five hundred thirty thousand, one hundred sixty-one".