205045442433 has 12 divisors (see below), whose sum is σ = 318959577300. Its totient is φ = 126181810656.

The previous prime is 205045442431. The next prime is 205045442491. The reversal of 205045442433 is 334244540502.

205045442433 is a `hidden beast` number, since 20 + 50 + 4 + 544 + 2 + 43 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65970895104 + 139074547329 = 256848^2 + 372927^2 .

It is not a de Polignac number, because 205045442433 - 2¹ = 205045442431 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (205045442431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 876262458 + ... + 876262691.

It is an arithmetic number, because the mean of its divisors is an integer number (26579964775).

Almost surely, 2^205045442433 is an apocalyptic number.

It is an amenable number.

205045442433 is a deficient number, since it is larger than the sum of its proper divisors (113914134867).

205045442433 is a wasteful number, since it uses less digits than its factorization.

205045442433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752525168 (or 1752525165 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 205045442433 its reverse (334244540502), we get a palindrome (539289982935).

The spelling of 205045442433 in words is "two hundred five billion, forty-five million, four hundred forty-two thousand, four hundred thirty-three".