205068663 has 12 divisors (see below), whose sum is σ = 296410608. Its totient is φ = 136620000.

The previous prime is 205068581. The next prime is 205068673. The reversal of 205068663 is 366860502.

It is not a de Polignac number, because 205068663 - 2⁸ = 205068407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205068673) 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, 8038 + ... + 21788.

It is an arithmetic number, because the mean of its divisors is an integer number (24700884).

Almost surely, 2^205068663 is an apocalyptic number.

205068663 is a deficient number, since it is larger than the sum of its proper divisors (91341945).

205068663 is a wasteful number, since it uses less digits than its factorization.

205068663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15414 (or 15411 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 205068663 is about 14320.2186784979. The cubic root of 205068663 is about 589.7026779254.

The spelling of 205068663 in words is "two hundred five million, sixty-eight thousand, six hundred sixty-three".