205265316011 has 32 divisors (see below), whose sum is σ = 249832304640. Its totient is φ = 164852541216.

The previous prime is 205265316007. The next prime is 205265316089. The reversal of 205265316011 is 110613562502.

205265316011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205265316011 - 2² = 205265316007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205265316611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1877720 + ... + 1984026.

It is an arithmetic number, because the mean of its divisors is an integer number (7807259520).

Almost surely, 2^205265316011 is an apocalyptic number.

205265316011 is a deficient number, since it is larger than the sum of its proper divisors (44566988629).

205265316011 is a wasteful number, since it uses less digits than its factorization.

205265316011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106583.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 205265316011 its reverse (110613562502), we get a palindrome (315878878513).

The spelling of 205265316011 in words is "two hundred five billion, two hundred sixty-five million, three hundred sixteen thousand, eleven".