206664212 has 12 divisors (see below), whose sum is σ = 361763220. Its totient is φ = 103303296.

The previous prime is 206664193. The next prime is 206664251. The reversal of 206664212 is 212466602.

206664212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 158860816 + 47803396 = 12604^2 + 6914^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23114 + ... + 30782.

It is an arithmetic number, because the mean of its divisors is an integer number (30146935).

Almost surely, 2^206664212 is an apocalyptic number.

It is an amenable number.

206664212 is a deficient number, since it is larger than the sum of its proper divisors (155099008).

206664212 is a wasteful number, since it uses less digits than its factorization.

206664212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14410 (or 14408 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 206664212 is about 14375.8203939810. The cubic root of 206664212 is about 591.2281340927.

The spelling of 206664212 in words is "two hundred six million, six hundred sixty-four thousand, two hundred twelve".