204208085441 has 2 divisors, whose sum is σ = 204208085442. Its totient is φ = 204208085440.

The previous prime is 204208085437. The next prime is 204208085443. The reversal of 204208085441 is 144580802402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202863763216 + 1344322225 = 450404^2 + 36665^2 .

It is a cyclic number.

It is not a de Polignac number, because 204208085441 - 2² = 204208085437 is a prime.

Together with 204208085443, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 204208085395 and 204208085404.

It is not a weakly prime, because it can be changed into another prime (204208085443) 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, 102104042720 + 102104042721.

It is an arithmetic number, because the mean of its divisors is an integer number (102104042721).

Almost surely, 2^204208085441 is an apocalyptic number.

It is an amenable number.

204208085441 is a deficient number, since it is larger than the sum of its proper divisors (1).

204208085441 is an equidigital number, since it uses as much as digits as its factorization.

204208085441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81920, while the sum is 38.

Adding to 204208085441 its reverse (144580802402), we get a palindrome (348788887843).

The spelling of 204208085441 in words is "two hundred four billion, two hundred eight million, eighty-five thousand, four hundred forty-one".