206011866023 has 2 divisors, whose sum is σ = 206011866024. Its totient is φ = 206011866022.

The previous prime is 206011866001. The next prime is 206011866041. The reversal of 206011866023 is 320668110602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206011866023 - 2⁶ = 206011865959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206011866043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103005933011 + 103005933012.

It is an arithmetic number, because the mean of its divisors is an integer number (103005933012).

Almost surely, 2^206011866023 is an apocalyptic number.

206011866023 is a deficient number, since it is larger than the sum of its proper divisors (1).

206011866023 is an equidigital number, since it uses as much as digits as its factorization.

206011866023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

Adding to 206011866023 its reverse (320668110602), we get a palindrome (526679976625).

The spelling of 206011866023 in words is "two hundred six billion, eleven million, eight hundred sixty-six thousand, twenty-three".