165299918 has 16 divisors (see below), whose sum is σ = 283696224. Its totient is φ = 70761600.

The previous prime is 165299899. The next prime is 165299929. The reversal of 165299918 is 819992561.

165299918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6818 + ... + 19418.

It is an arithmetic number, because the mean of its divisors is an integer number (17731014).

Almost surely, 2^165299918 is an apocalyptic number.

165299918 is a deficient number, since it is larger than the sum of its proper divisors (118396306).

165299918 is a wasteful number, since it uses less digits than its factorization.

165299918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13547.

The product of its digits is 349920, while the sum is 50.

The square root of 165299918 is about 12856.9015707518. The cubic root of 165299918 is about 548.8127757532.

The spelling of 165299918 in words is "one hundred sixty-five million, two hundred ninety-nine thousand, nine hundred eighteen".