165050605 has 16 divisors (see below), whose sum is σ = 203224320. Its totient is φ = 128624832.

The previous prime is 165050593. The next prime is 165050617. The reversal of 165050605 is 506050561.

It is an interprime number because it is at equal distance from previous prime (165050593) and next prime (165050617).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165050605 is a prime.

It is a congruent number.

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, 52282 + ... + 55348.

It is an arithmetic number, because the mean of its divisors is an integer number (12701520).

Almost surely, 2^165050605 is an apocalyptic number.

It is an amenable number.

165050605 is a deficient number, since it is larger than the sum of its proper divisors (38173715).

165050605 is a wasteful number, since it uses less digits than its factorization.

165050605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 165050605 is about 12847.2022246091. The cubic root of 165050605 is about 548.5367219635.

The spelling of 165050605 in words is "one hundred sixty-five million, fifty thousand, six hundred five".