205265316043 has 32 divisors (see below), whose sum is σ = 217610426880. Its totient is φ = 193388778240.

The previous prime is 205265316007. The next prime is 205265316089. The reversal of 205265316043 is 340613562502.

205265316043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205265316043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205265315993 and 205265316011.

It is not an unprimeable number, because it can be changed into a prime (205265316343) 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, 57999168 + ... + 58002706.

It is an arithmetic number, because the mean of its divisors is an integer number (6800325840).

Almost surely, 2^205265316043 is an apocalyptic number.

205265316043 is a deficient number, since it is larger than the sum of its proper divisors (12345110837).

205265316043 is a wasteful number, since it uses less digits than its factorization.

205265316043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 205265316043 its reverse (340613562502), we get a palindrome (545878878545).

The spelling of 205265316043 in words is "two hundred five billion, two hundred sixty-five million, three hundred sixteen thousand, forty-three".