206680587065 has 16 divisors (see below), whose sum is σ = 264215649600. Its totient is φ = 154754868672.

The previous prime is 206680587049. The next prime is 206680587097. The reversal of 206680587065 is 560785086602.

It is not a de Polignac number, because 206680587065 - 2⁴ = 206680587049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206680586998 and 206680587016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13098050 + ... + 13113819.

It is an arithmetic number, because the mean of its divisors is an integer number (16513478100).

Almost surely, 2^206680587065 is an apocalyptic number.

It is an amenable number.

206680587065 is a deficient number, since it is larger than the sum of its proper divisors (57535062535).

206680587065 is a wasteful number, since it uses less digits than its factorization.

206680587065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26211976.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 206680587065 in words is "two hundred six billion, six hundred eighty million, five hundred eighty-seven thousand, sixty-five".