165090790 has 16 divisors (see below), whose sum is σ = 303486912. Its totient is φ = 64631104.

The previous prime is 165090787. The next prime is 165090797. The reversal of 165090790 is 97090561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165090797) 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, 175159 + ... + 176098.

It is an arithmetic number, because the mean of its divisors is an integer number (18967932).

Almost surely, 2^165090790 is an apocalyptic number.

165090790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165090790 is a deficient number, since it is larger than the sum of its proper divisors (138396122).

165090790 is a wasteful number, since it uses less digits than its factorization.

165090790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351311.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 165090790 is about 12848.7660886172. The cubic root of 165090790 is about 548.5812359061.

The spelling of 165090790 in words is "one hundred sixty-five million, ninety thousand, seven hundred ninety".