206668799012 has 48 divisors (see below), whose sum is σ = 403584986112. Its totient is φ = 91957472640.

The previous prime is 206668799003. The next prime is 206668799023. The reversal of 206668799012 is 210997866602.

It is a happy number.

It is a super-2 number, since 2×206668799012² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 180218 + ... + 667694.

It is an arithmetic number, because the mean of its divisors is an integer number (8408020544).

Almost surely, 2^206668799012 is an apocalyptic number.

It is an amenable number.

206668799012 is a deficient number, since it is larger than the sum of its proper divisors (196916187100).

206668799012 is a wasteful number, since it uses less digits than its factorization.

206668799012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487788 (or 487786 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 206668799012 in words is "two hundred six billion, six hundred sixty-eight million, seven hundred ninety-nine thousand, twelve".