205136231050 has 24 divisors (see below), whose sum is σ = 381615223500. Its totient is φ = 82041194880.

The previous prime is 205136231033. The next prime is 205136231081. The reversal of 205136231050 is 50132631502.

205136231050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 40687327521 + 164448903529 = 201711^2 + 405523^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 17875 + ... + 640774.

Almost surely, 2^205136231050 is an apocalyptic number.

205136231050 is a deficient number, since it is larger than the sum of its proper divisors (176478992450).

205136231050 is a wasteful number, since it uses less digits than its factorization.

205136231050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664890 (or 664885 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 205136231050 its reverse (50132631502), we get a palindrome (255268862552).

The spelling of 205136231050 in words is "two hundred five billion, one hundred thirty-six million, two hundred thirty-one thousand, fifty".