206164633 has 2 divisors, whose sum is σ = 206164634. Its totient is φ = 206164632.

The previous prime is 206164603. The next prime is 206164727. The reversal of 206164633 is 336461602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189420169 + 16744464 = 13763^2 + 4092^2 .

It is a cyclic number.

It is not a de Polignac number, because 206164633 - 2¹⁷ = 206033561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206164595 and 206164604.

It is not a weakly prime, because it can be changed into another prime (206164603) 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, 103082316 + 103082317.

It is an arithmetic number, because the mean of its divisors is an integer number (103082317).

Almost surely, 2^206164633 is an apocalyptic number.

It is an amenable number.

206164633 is a deficient number, since it is larger than the sum of its proper divisors (1).

206164633 is an equidigital number, since it uses as much as digits as its factorization.

206164633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 206164633 is about 14358.4342112920. The cubic root of 206164633 is about 590.7513486230.

The spelling of 206164633 in words is "two hundred six million, one hundred sixty-four thousand, six hundred thirty-three".