166850090 has 16 divisors (see below), whose sum is σ = 327633120. Its totient is φ = 60672720.

The previous prime is 166850083. The next prime is 166850113. The reversal of 166850090 is 90058661.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166850090.

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, 758300 + ... + 758519.

It is an arithmetic number, because the mean of its divisors is an integer number (20477070).

Almost surely, 2^166850090 is an apocalyptic number.

166850090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166850090 is a deficient number, since it is larger than the sum of its proper divisors (160783030).

166850090 is a wasteful number, since it uses less digits than its factorization.

166850090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516837.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 166850090 is about 12917.0464890392. The cubic root of 166850090 is about 550.5230176349.

The spelling of 166850090 in words is "one hundred sixty-six million, eight hundred fifty thousand, ninety".