205265316042 has 48 divisors (see below), whose sum is σ = 445468915008. Its totient is φ = 68309962560.

The previous prime is 205265316007. The next prime is 205265316089. The reversal of 205265316042 is 240613562502.

205265316042 is a `hidden beast` number, since 2 + 0 + 5 + 26 + 531 + 60 + 42 = 666.

205265316042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 205265315988 and 205265316006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43754917 + ... + 43759607.

It is an arithmetic number, because the mean of its divisors is an integer number (9280602396).

Almost surely, 2^205265316042 is an apocalyptic number.

205265316042 is an abundant number, since it is smaller than the sum of its proper divisors (240203598966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205265316042 is a wasteful number, since it uses less digits than its factorization.

205265316042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155 (or 8152 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 205265316042 its reverse (240613562502), we get a palindrome (445878878544).

The spelling of 205265316042 in words is "two hundred five billion, two hundred sixty-five million, three hundred sixteen thousand, forty-two".