205005066 has 32 divisors (see below), whose sum is σ = 469093248. Its totient is φ = 58509120.

The previous prime is 205005013. The next prime is 205005067. The reversal of 205005066 is 660500502.

It is not an unprimeable number, because it can be changed into a prime (205005067) 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, 47536 + ... + 51668.

It is an arithmetic number, because the mean of its divisors is an integer number (14659164).

Almost surely, 2^205005066 is an apocalyptic number.

205005066 is an abundant number, since it is smaller than the sum of its proper divisors (264088182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205005066 is a wasteful number, since it uses less digits than its factorization.

205005066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 205005066 is about 14317.9979745773. The cubic root of 205005066 is about 589.6417110307.

Adding to 205005066 its reverse (660500502), we get a palindrome (865505568).

The spelling of 205005066 in words is "two hundred five million, five thousand, sixty-six".