165010516161 has 16 divisors (see below), whose sum is σ = 221668176960. Its totient is φ = 109182295040.

The previous prime is 165010516157. The next prime is 165010516193. The reversal of 165010516161 is 161615010561.

It is a cyclic number.

It is not a de Polignac number, because 165010516161 - 2² = 165010516157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165010516061) by changing a digit.

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, 15120 + ... + 574673.

It is an arithmetic number, because the mean of its divisors is an integer number (13854261060).

Almost surely, 2^165010516161 is an apocalyptic number.

It is an amenable number.

165010516161 is a deficient number, since it is larger than the sum of its proper divisors (56657660799).

165010516161 is a wasteful number, since it uses less digits than its factorization.

165010516161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590496.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 165010516161 in words is "one hundred sixty-five billion, ten million, five hundred sixteen thousand, one hundred sixty-one".