206056688 has 20 divisors (see below), whose sum is σ = 408520728. Its totient is φ = 100632000.

The previous prime is 206056679. The next prime is 206056703. The reversal of 206056688 is 886650602.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 149063 + ... + 150438.

Almost surely, 2^206056688 is an apocalyptic number.

It is an amenable number.

206056688 is a deficient number, since it is larger than the sum of its proper divisors (202464040).

206056688 is a wasteful number, since it uses less digits than its factorization.

206056688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299552 (or 299546 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 206056688 is about 14354.6747786218. The cubic root of 206056688 is about 590.6482274974.

The spelling of 206056688 in words is "two hundred six million, fifty-six thousand, six hundred eighty-eight".