165430065 has 16 divisors (see below), whose sum is σ = 273816000. Its totient is φ = 85186752.

The previous prime is 165430049. The next prime is 165430087. The reversal of 165430065 is 560034561.

It is not a de Polignac number, because 165430065 - 2⁴ = 165430049 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 189715 + ... + 190584.

It is an arithmetic number, because the mean of its divisors is an integer number (17113500).

Almost surely, 2^165430065 is an apocalyptic number.

165430065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165430065 is a deficient number, since it is larger than the sum of its proper divisors (108385935).

165430065 is a wasteful number, since it uses less digits than its factorization.

165430065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380336.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 165430065 is about 12861.9619420989. The cubic root of 165430065 is about 548.9567717895.

The spelling of 165430065 in words is "one hundred sixty-five million, four hundred thirty thousand, sixty-five".