186943368661 has 12 divisors (see below), whose sum is σ = 217477690560. Its totient is φ = 160227627000.

The previous prime is 186943368629. The next prime is 186943368691. The reversal of 186943368661 is 166863349681.

It is not a de Polignac number, because 186943368661 - 2⁵ = 186943368629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 186943368661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186943368691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789780 + ... + 998818.

It is an arithmetic number, because the mean of its divisors is an integer number (18123140880).

Almost surely, 2^186943368661 is an apocalyptic number.

It is an amenable number.

186943368661 is a deficient number, since it is larger than the sum of its proper divisors (30534321899).

186943368661 is a wasteful number, since it uses less digits than its factorization.

186943368661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227304 (or 227297 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 61.

The spelling of 186943368661 in words is "one hundred eighty-six billion, nine hundred forty-three million, three hundred sixty-eight thousand, six hundred sixty-one".