204020566241939 has 2 divisors, whose sum is σ = 204020566241940. Its totient is φ = 204020566241938.

The previous prime is 204020566241887. The next prime is 204020566242139. The reversal of 204020566241939 is 939142665020402.

It is a happy number.

204020566241939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204020566241939 is a prime.

It is not a weakly prime, because it can be changed into another prime (204020566241039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102010283120969 + 102010283120970.

It is an arithmetic number, because the mean of its divisors is an integer number (102010283120970).

Almost surely, 2^{204020566241939} is an apocalyptic number.

204020566241939 is a deficient number, since it is larger than the sum of its proper divisors (1).

204020566241939 is an equidigital number, since it uses as much as digits as its factorization.

204020566241939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 204020566241939 in words is "two hundred four trillion, twenty billion, five hundred sixty-six million, two hundred forty-one thousand, nine hundred thirty-nine".