165223567 has 8 divisors (see below), whose sum is σ = 166662000. Its totient is φ = 163789824.

The previous prime is 165223549. The next prime is 165223573. The reversal of 165223567 is 765322561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165223567 - 2¹¹ = 165221519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165223517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116559 + ... + 117967.

It is an arithmetic number, because the mean of its divisors is an integer number (20832750).

Almost surely, 2^165223567 is an apocalyptic number.

165223567 is a deficient number, since it is larger than the sum of its proper divisors (1438433).

165223567 is a wasteful number, since it uses less digits than its factorization.

165223567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345.

The product of its digits is 75600, while the sum is 37.

The square root of 165223567 is about 12853.9319665229. The cubic root of 165223567 is about 548.7282650088.

The spelling of 165223567 in words is "one hundred sixty-five million, two hundred twenty-three thousand, five hundred sixty-seven".