206663992 has 16 divisors (see below), whose sum is σ = 387975960. Its totient is φ = 103203744.

The previous prime is 206663983. The next prime is 206663999. The reversal of 206663992 is 299366602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206663999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9003 + ... + 22234.

Almost surely, 2^206663992 is an apocalyptic number.

It is an amenable number.

206663992 is a deficient number, since it is larger than the sum of its proper divisors (181311968).

206663992 is a wasteful number, since it uses less digits than its factorization.

206663992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32070 (or 32066 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 206663992 is about 14375.8127422417. The cubic root of 206663992 is about 591.2279242995.

The spelling of 206663992 in words is "two hundred six million, six hundred sixty-three thousand, nine hundred ninety-two".