206663196 has 12 divisors (see below), whose sum is σ = 482214152. Its totient is φ = 68887728.

The previous prime is 206663173. The next prime is 206663231. The reversal of 206663196 is 691366602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8610955 + ... + 8610978.

Almost surely, 2^206663196 is an apocalyptic number.

It is an amenable number.

206663196 is an abundant number, since it is smaller than the sum of its proper divisors (275550956).

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

206663196 is a wasteful number, since it uses less digits than its factorization.

206663196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17221940 (or 17221938 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 206663196 is about 14375.7850568239. The cubic root of 206663196 is about 591.2271652283.

The spelling of 206663196 in words is "two hundred six million, six hundred sixty-three thousand, one hundred ninety-six".