206668275 has 48 divisors (see below), whose sum is σ = 374285568. Its totient is φ = 99792000.

The previous prime is 206668261. The next prime is 206668279. The reversal of 206668275 is 572866602.

It is not a de Polignac number, because 206668275 - 2⁶ = 206668211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206668279) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 327210 + ... + 327840.

It is an arithmetic number, because the mean of its divisors is an integer number (7797616).

Almost surely, 2^206668275 is an apocalyptic number.

206668275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

206668275 is a deficient number, since it is larger than the sum of its proper divisors (167617293).

206668275 is a wasteful number, since it uses less digits than its factorization.

206668275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 206668275 is about 14375.9617069607. The cubic root of 206668275 is about 591.2320085648.

The spelling of 206668275 in words is "two hundred six million, six hundred sixty-eight thousand, two hundred seventy-five".