206418368266 has 32 divisors (see below), whose sum is σ = 349436918592. Its totient is φ = 90624274560.

The previous prime is 206418368257. The next prime is 206418368287. The reversal of 206418368266 is 662863814602.

206418368266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 813976 + ... + 1037011.

It is an arithmetic number, because the mean of its divisors is an integer number (10919903706).

Almost surely, 2^206418368266 is an apocalyptic number.

206418368266 is a deficient number, since it is larger than the sum of its proper divisors (143018550326).

206418368266 is a wasteful number, since it uses less digits than its factorization.

206418368266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851174.

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 206418368266 in words is "two hundred six billion, four hundred eighteen million, three hundred sixty-eight thousand, two hundred sixty-six".