206843456820268 has 24 divisors (see below), whose sum is σ = 362331765702144. Its totient is φ = 103320097755600.

The previous prime is 206843456820179. The next prime is 206843456820313. The reversal of 206843456820268 is 862028654348602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376704621 + ... + 377253307.

It is an arithmetic number, because the mean of its divisors is an integer number (15097156904256).

Almost surely, 2^{206843456820268} is an apocalyptic number.

It is an amenable number.

206843456820268 is a deficient number, since it is larger than the sum of its proper divisors (155488308881876).

206843456820268 is a wasteful number, since it uses less digits than its factorization.

206843456820268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641133 (or 641131 counting only the distinct ones).

The product of its (nonzero) digits is 212336640, while the sum is 64.

The spelling of 206843456820268 in words is "two hundred six trillion, eight hundred forty-three billion, four hundred fifty-six million, eight hundred twenty thousand, two hundred sixty-eight".