206805475226 has 16 divisors (see below), whose sum is σ = 354545880000. Its totient is φ = 88625365920.

The previous prime is 206805475187. The next prime is 206805475241. The reversal of 206805475226 is 622574508602.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227060 + ... + 682031.

It is an arithmetic number, because the mean of its divisors is an integer number (22159117500).

Almost surely, 2^206805475226 is an apocalyptic number.

206805475226 is a deficient number, since it is larger than the sum of its proper divisors (147740404774).

206805475226 is a wasteful number, since it uses less digits than its factorization.

206805475226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925349.

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 206805475226 in words is "two hundred six billion, eight hundred five million, four hundred seventy-five thousand, two hundred twenty-six".