199662966 has 12 divisors (see below), whose sum is σ = 432603132. Its totient is φ = 66554316.

The previous prime is 199662949. The next prime is 199662973. The reversal of 199662966 is 669266991.

It is a happy number.

199662966 is a `hidden beast` number, since 1 + 9 + 9 + 6 + 629 + 6 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5546176 + ... + 5546211.

It is an arithmetic number, because the mean of its divisors is an integer number (36050261).

Almost surely, 2^199662966 is an apocalyptic number.

199662966 is an abundant number, since it is smaller than the sum of its proper divisors (232940166).

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

199662966 is a wasteful number, since it uses less digits than its factorization.

199662966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092395 (or 11092392 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 199662966 is about 14130.2146480512. The cubic root of 199662966 is about 584.4748651466.

The spelling of 199662966 in words is "one hundred ninety-nine million, six hundred sixty-two thousand, nine hundred sixty-six".