206212110216166 has 32 divisors (see below), whose sum is σ = 327017608473600. Its totient is φ = 97325580992640.

The previous prime is 206212110216157. The next prime is 206212110216199. The reversal of 206212110216166 is 661612011212602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7145155 + ... + 21528526.

It is an arithmetic number, because the mean of its divisors is an integer number (10219300264800).

Almost surely, 2^{206212110216166} is an apocalyptic number.

206212110216166 is a deficient number, since it is larger than the sum of its proper divisors (120805498257434).

206212110216166 is a wasteful number, since it uses less digits than its factorization.

206212110216166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28675764.

The product of its (nonzero) digits is 20736, while the sum is 37.

Adding to 206212110216166 its reverse (661612011212602), we get a palindrome (867824121428768).

The spelling of 206212110216166 in words is "two hundred six trillion, two hundred twelve billion, one hundred ten million, two hundred sixteen thousand, one hundred sixty-six".