165890914 has 16 divisors (see below), whose sum is σ = 284671296. Its totient is φ = 71024400.

The previous prime is 165890887. The next prime is 165890969. The reversal of 165890914 is 419098561.

165890914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 9844 + ... + 20704.

It is an arithmetic number, because the mean of its divisors is an integer number (17791956).

Almost surely, 2^165890914 is an apocalyptic number.

165890914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165890914 is a deficient number, since it is larger than the sum of its proper divisors (118780382).

165890914 is a wasteful number, since it uses less digits than its factorization.

165890914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11961.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 165890914 is about 12879.8646732021. The cubic root of 165890914 is about 549.4660537074.

The spelling of 165890914 in words is "one hundred sixty-five million, eight hundred ninety thousand, nine hundred fourteen".