206026664 has 16 divisors (see below), whose sum is σ = 391741920. Its totient is φ = 101562160.

The previous prime is 206026661. The next prime is 206026679. The reversal of 206026664 is 466620602.

It is a self number, because there is not a number n which added to its sum of digits gives 206026664.

It is not an unprimeable number, because it can be changed into a prime (206026661) 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, 180794 + ... + 181929.

It is an arithmetic number, because the mean of its divisors is an integer number (24483870).

Almost surely, 2^206026664 is an apocalyptic number.

It is an amenable number.

206026664 is a deficient number, since it is larger than the sum of its proper divisors (185715256).

206026664 is a wasteful number, since it uses less digits than its factorization.

206026664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362800 (or 362796 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 206026664 is about 14353.6289488059. The cubic root of 206026664 is about 590.6195388165.

The spelling of 206026664 in words is "two hundred six million, twenty-six thousand, six hundred sixty-four".