205105064 has 16 divisors (see below), whose sum is σ = 387340800. Its totient is φ = 101814192.

The previous prime is 205105009. The next prime is 205105067. The reversal of 205105064 is 460501502.

205105064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (205105067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91112 + ... + 93335.

It is an arithmetic number, because the mean of its divisors is an integer number (24208800).

Almost surely, 2^205105064 is an apocalyptic number.

It is an amenable number.

205105064 is a deficient number, since it is larger than the sum of its proper divisors (182235736).

205105064 is a wasteful number, since it uses less digits than its factorization.

205105064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184592 (or 184588 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 205105064 is about 14321.4895873299. The cubic root of 205105064 is about 589.7375678608.

Adding to 205105064 its reverse (460501502), we get a palindrome (665606566).

The spelling of 205105064 in words is "two hundred five million, one hundred five thousand, sixty-four".