204230066 has 4 divisors (see below), whose sum is σ = 306345102. Its totient is φ = 102115032.

The previous prime is 204230053. The next prime is 204230071. The reversal of 204230066 is 660032402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 202066225 + 2163841 = 14215^2 + 1471^2 .

It is a Curzon number.

It is an unprimeable number.

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, 51057515 + ... + 51057518.

Almost surely, 2^204230066 is an apocalyptic number.

204230066 is a deficient number, since it is larger than the sum of its proper divisors (102115036).

204230066 is a wasteful number, since it uses less digits than its factorization.

204230066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102115035.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 204230066 is about 14290.9085085589. The cubic root of 204230066 is about 588.8977466779.

Adding to 204230066 its reverse (660032402), we get a palindrome (864262468).

The spelling of 204230066 in words is "two hundred four million, two hundred thirty thousand, sixty-six".