206326530566 has 32 divisors (see below), whose sum is σ = 342355087200. Its totient is φ = 92640278016.

The previous prime is 206326530541. The next prime is 206326530593. The reversal of 206326530566 is 665035623602.

It is a congruent number.

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, 9519710 + ... + 9541358.

It is an arithmetic number, because the mean of its divisors is an integer number (10698596475).

Almost surely, 2^206326530566 is an apocalyptic number.

206326530566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

206326530566 is a deficient number, since it is larger than the sum of its proper divisors (136028556634).

206326530566 is a wasteful number, since it uses less digits than its factorization.

206326530566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31608.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 206326530566 in words is "two hundred six billion, three hundred twenty-six million, five hundred thirty thousand, five hundred sixty-six".