160505165 has 4 divisors (see below), whose sum is σ = 192606204. Its totient is φ = 128404128.

The previous prime is 160505161. The next prime is 160505167. The reversal of 160505165 is 561505061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71334916 + 89170249 = 8446^2 + 9443^2 .

It is a cyclic number.

It is not a de Polignac number, because 160505165 - 2² = 160505161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160505161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16050512 + ... + 16050521.

It is an arithmetic number, because the mean of its divisors is an integer number (48151551).

Almost surely, 2^160505165 is an apocalyptic number.

It is an amenable number.

160505165 is a deficient number, since it is larger than the sum of its proper divisors (32101039).

160505165 is an equidigital number, since it uses as much as digits as its factorization.

160505165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32101038.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 160505165 is about 12669.0633039700. The cubic root of 160505165 is about 543.4542683952.

The spelling of 160505165 in words is "one hundred sixty million, five hundred five thousand, one hundred sixty-five".