205445001241 has 16 divisors (see below), whose sum is σ = 218035152000. Its totient is φ = 192911361280.

The previous prime is 205445001239. The next prime is 205445001247. The reversal of 205445001241 is 142100544502.

It is a cyclic number.

It is not a de Polignac number, because 205445001241 - 2¹ = 205445001239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205445001247) 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, 22825260 + ... + 22834258.

It is an arithmetic number, because the mean of its divisors is an integer number (13627197000).

Almost surely, 2^205445001241 is an apocalyptic number.

It is an amenable number.

205445001241 is a deficient number, since it is larger than the sum of its proper divisors (12590150759).

205445001241 is a wasteful number, since it uses less digits than its factorization.

205445001241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11984.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 205445001241 its reverse (142100544502), we get a palindrome (347545545743).

The spelling of 205445001241 in words is "two hundred five billion, four hundred forty-five million, one thousand, two hundred forty-one".