206865568 has 48 divisors (see below), whose sum is σ = 501258240. Its totient is φ = 81835776.

The previous prime is 206865553. The next prime is 206865569. The reversal of 206865568 is 865568602.

It is not an unprimeable number, because it can be changed into a prime (206865569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32608 + ... + 38431.

It is an arithmetic number, because the mean of its divisors is an integer number (10442880).

Almost surely, 2^206865568 is an apocalyptic number.

206865568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

206865568 is an abundant number, since it is smaller than the sum of its proper divisors (294392672).

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

206865568 is a wasteful number, since it uses less digits than its factorization.

206865568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71069 (or 71061 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 206865568 is about 14382.8219762326. The cubic root of 206865568 is about 591.4200858724.

The spelling of 206865568 in words is "two hundred six million, eight hundred sixty-five thousand, five hundred sixty-eight".