205664083 has 2 divisors, whose sum is σ = 205664084. Its totient is φ = 205664082.

The previous prime is 205664059. The next prime is 205664099. The reversal of 205664083 is 380466502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205664083 - 2⁵ = 205664051 is a prime.

It is not a weakly prime, because it can be changed into another prime (205664033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102832041 + 102832042.

It is an arithmetic number, because the mean of its divisors is an integer number (102832042).

Almost surely, 2^205664083 is an apocalyptic number.

205664083 is a deficient number, since it is larger than the sum of its proper divisors (1).

205664083 is an equidigital number, since it uses as much as digits as its factorization.

205664083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 205664083 is about 14340.9930967140. The cubic root of 205664083 is about 590.2728633490.

It can be divided in two parts, 20566 and 4083, that added together give a square (24649 = 157²).

The spelling of 205664083 in words is "two hundred five million, six hundred sixty-four thousand, eighty-three".