205030909441 has 16 divisors (see below), whose sum is σ = 214980505344. Its totient is φ = 195169132224.

The previous prime is 205030909429. The next prime is 205030909471. The reversal of 205030909441 is 144909030502.

It is a cyclic number.

It is not a de Polignac number, because 205030909441 - 2⁷ = 205030909313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205030909441.

It is not an unprimeable number, because it can be changed into a prime (205030909471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6013855 + ... + 6047851.

It is an arithmetic number, because the mean of its divisors is an integer number (13436281584).

Almost surely, 2^205030909441 is an apocalyptic number.

It is an amenable number.

205030909441 is a deficient number, since it is larger than the sum of its proper divisors (9949595903).

205030909441 is a wasteful number, since it uses less digits than its factorization.

205030909441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35280.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 205030909441 its reverse (144909030502), we get a palindrome (349939939943).

The spelling of 205030909441 in words is "two hundred five billion, thirty million, nine hundred nine thousand, four hundred forty-one".