206108668 has 12 divisors (see below), whose sum is σ = 361675552. Its totient is φ = 102772800.

The previous prime is 206108657. The next prime is 206108687. The reversal of 206108668 is 866801602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68733 + ... + 71668.

Almost surely, 2^206108668 is an apocalyptic number.

It is an amenable number.

206108668 is a deficient number, since it is larger than the sum of its proper divisors (155566884).

206108668 is a wasteful number, since it uses less digits than its factorization.

206108668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140772 (or 140770 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 206108668 is about 14356.4852244552. The cubic root of 206108668 is about 590.6978890961.

The spelling of 206108668 in words is "two hundred six million, one hundred eight thousand, six hundred sixty-eight".