205068664 has 16 divisors (see below), whose sum is σ = 386728920. Its totient is φ = 101940960.

The previous prime is 205068581. The next prime is 205068673. The reversal of 205068664 is 466860502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72702 + ... + 75469.

Almost surely, 2^205068664 is an apocalyptic number.

It is an amenable number.

205068664 is a deficient number, since it is larger than the sum of its proper divisors (181660256).

205068664 is a wasteful number, since it uses less digits than its factorization.

205068664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148350 (or 148346 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 205068664 is about 14320.2187134136. The cubic root of 205068664 is about 589.7026788840.

The spelling of 205068664 in words is "two hundred five million, sixty-eight thousand, six hundred sixty-four".