206876681776 has 20 divisors (see below), whose sum is σ = 401477462032. Its totient is φ = 103269594816.

The previous prime is 206876681717. The next prime is 206876681779. The reversal of 206876681776 is 677186678602.

It is a super-2 number, since 2×206876681776² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206876681779) by changing a digit.

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, 10536516 + ... + 10556131.

Almost surely, 2^206876681776 is an apocalyptic number.

It is an amenable number.

206876681776 is a deficient number, since it is larger than the sum of its proper divisors (194600780256).

206876681776 is a wasteful number, since it uses less digits than its factorization.

206876681776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21093268 (or 21093262 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 64.

The spelling of 206876681776 in words is "two hundred six billion, eight hundred seventy-six million, six hundred eighty-one thousand, seven hundred seventy-six".