199085166 has 24 divisors (see below), whose sum is σ = 492973104. Its totient is φ = 56881440.

The previous prime is 199085153. The next prime is 199085213. The reversal of 199085166 is 661580991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789895 + ... + 790146.

It is an arithmetic number, because the mean of its divisors is an integer number (20540546).

Almost surely, 2^199085166 is an apocalyptic number.

199085166 is an abundant number, since it is smaller than the sum of its proper divisors (293887938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199085166 is a wasteful number, since it uses less digits than its factorization.

199085166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580056 (or 1580053 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 199085166 is about 14109.7542855997. The cubic root of 199085166 is about 583.9105210223.

The spelling of 199085166 in words is "one hundred ninety-nine million, eighty-five thousand, one hundred sixty-six".