206041663 has 2 divisors, whose sum is σ = 206041664. Its totient is φ = 206041662.

The previous prime is 206041651. The next prime is 206041669. The reversal of 206041663 is 366140602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206041663 - 2⁹ = 206041151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206041669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103020831 + 103020832.

It is an arithmetic number, because the mean of its divisors is an integer number (103020832).

Almost surely, 2^206041663 is an apocalyptic number.

206041663 is a deficient number, since it is larger than the sum of its proper divisors (1).

206041663 is an equidigital number, since it uses as much as digits as its factorization.

206041663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 206041663 is about 14354.1514204080. The cubic root of 206041663 is about 590.6338710835.

The spelling of 206041663 in words is "two hundred six million, forty-one thousand, six hundred sixty-three".