206812758166 has 12 divisors (see below), whose sum is σ = 360867159828. Its totient is φ = 88634039172.

The previous prime is 206812758157. The next prime is 206812758181. The reversal of 206812758166 is 661857218602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1055167036 + ... + 1055167231.

It is an arithmetic number, because the mean of its divisors is an integer number (30072263319).

Almost surely, 2^206812758166 is an apocalyptic number.

206812758166 is a deficient number, since it is larger than the sum of its proper divisors (154054401662).

206812758166 is a wasteful number, since it uses less digits than its factorization.

206812758166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110334283 (or 2110334276 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 206812758166 in words is "two hundred six billion, eight hundred twelve million, seven hundred fifty-eight thousand, one hundred sixty-six".