206680 has 16 divisors (see below), whose sum is σ = 465120. Its totient is φ = 82656.

The previous prime is 206651. The next prime is 206699. The reversal of 206680 is 86602.

206680 = T₈₁ + T₈₂ + ... + T₁₂₀.

206680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2544 + ... + 2623.

It is an arithmetic number, because the mean of its divisors is an integer number (29070).

2²⁰⁶⁶⁸⁰ is an apocalyptic number.

206680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206680 is an abundant number, since it is smaller than the sum of its proper divisors (258440).

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

206680 is a wasteful number, since it uses less digits than its factorization.

206680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178 (or 5174 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 206680 is about 454.6207210412. The cubic root of 206680 is about 59.1243189226.

The spelling of 206680 in words is "two hundred six thousand, six hundred eighty".