165890230 has 16 divisors (see below), whose sum is σ = 325748304. Its totient is φ = 60323680.

The previous prime is 165890227. The next prime is 165890251. The reversal of 165890230 is 32098561.

165890230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 753937 + ... + 754156.

It is an arithmetic number, because the mean of its divisors is an integer number (20359269).

Almost surely, 2^165890230 is an apocalyptic number.

165890230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165890230 is a deficient number, since it is larger than the sum of its proper divisors (159858074).

165890230 is a wasteful number, since it uses less digits than its factorization.

165890230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508111.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 165890230 is about 12879.8381201007. The cubic root of 165890230 is about 549.4652985218.

The spelling of 165890230 in words is "one hundred sixty-five million, eight hundred ninety thousand, two hundred thirty".