204416334144361 has 2 divisors, whose sum is σ = 204416334144362. Its totient is φ = 204416334144360.

The previous prime is 204416334144359. The next prime is 204416334144377. The reversal of 204416334144361 is 163441433614402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104639089955625 + 99777244188736 = 10229325^2 + 9988856^2 .

It is a cyclic number.

It is not a de Polignac number, because 204416334144361 - 2¹ = 204416334144359 is a prime.

Together with 204416334144359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (204416334144391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102208167072180 + 102208167072181.

It is an arithmetic number, because the mean of its divisors is an integer number (102208167072181).

Almost surely, 2^{204416334144361} is an apocalyptic number.

It is an amenable number.

204416334144361 is a deficient number, since it is larger than the sum of its proper divisors (1).

204416334144361 is an equidigital number, since it uses as much as digits as its factorization.

204416334144361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 46.

Adding to 204416334144361 its reverse (163441433614402), we get a palindrome (367857767758763).

The spelling of 204416334144361 in words is "two hundred four trillion, four hundred sixteen billion, three hundred thirty-four million, one hundred forty-four thousand, three hundred sixty-one".