206116666107 has 64 divisors (see below), whose sum is σ = 326533939200. Its totient is φ = 114239623680.

The previous prime is 206116666087. The next prime is 206116666139. The reversal of 206116666107 is 701666611602.

It is a happy number.

It is not a de Polignac number, because 206116666107 - 2⁸ = 206116665851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206116666177) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3636894 + ... + 3693132.

It is an arithmetic number, because the mean of its divisors is an integer number (5102092800).

Almost surely, 2^206116666107 is an apocalyptic number.

206116666107 is a deficient number, since it is larger than the sum of its proper divisors (120417273093).

206116666107 is a wasteful number, since it uses less digits than its factorization.

206116666107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56456.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 206116666107 in words is "two hundred six billion, one hundred sixteen million, six hundred sixty-six thousand, one hundred seven".