205144103255 has 64 divisors (see below), whose sum is σ = 314182713600. Its totient is φ = 125070704640.

The previous prime is 205144103249. The next prime is 205144103267. The reversal of 205144103255 is 552301441502.

It is not a de Polignac number, because 205144103255 - 2¹⁴ = 205144086871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5536631 + ... + 5573559.

It is an arithmetic number, because the mean of its divisors is an integer number (4909104900).

Almost surely, 2^205144103255 is an apocalyptic number.

205144103255 is a deficient number, since it is larger than the sum of its proper divisors (109038610345).

205144103255 is a wasteful number, since it uses less digits than its factorization.

205144103255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37404.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 205144103255 its reverse (552301441502), we get a palindrome (757445544757).

The spelling of 205144103255 in words is "two hundred five billion, one hundred forty-four million, one hundred three thousand, two hundred fifty-five".