205334660 has 24 divisors (see below), whose sum is σ = 432081216. Its totient is φ = 81966560.

The previous prime is 205334621. The next prime is 205334671. The reversal of 205334660 is 66433502.

205334660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146 + ... + 20265.

It is an arithmetic number, because the mean of its divisors is an integer number (18003384).

Almost surely, 2^205334660 is an apocalyptic number.

205334660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205334660 is an abundant number, since it is smaller than the sum of its proper divisors (226746556).

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

205334660 is a wasteful number, since it uses less digits than its factorization.

205334660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20923 (or 20921 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 205334660 is about 14329.5031316511. The cubic root of 205334660 is about 589.9575378806.

The spelling of 205334660 in words is "two hundred five million, three hundred thirty-four thousand, six hundred sixty".