682166686 has 8 divisors (see below), whose sum is σ = 1030611960. Its totient is φ = 338629368.

The previous prime is 682166621. The next prime is 682166713. The reversal of 682166686 is 686661286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226641 + ... + 1227196.

It is an arithmetic number, because the mean of its divisors is an integer number (128826495).

Almost surely, 2^682166686 is an apocalyptic number.

682166686 is a deficient number, since it is larger than the sum of its proper divisors (348445274).

682166686 is a wasteful number, since it uses less digits than its factorization.

682166686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453978.

The product of its digits is 995328, while the sum is 49.

The square root of 682166686 is about 26118.3208878366. The cubic root of 682166686 is about 880.2989196288.

The spelling of 682166686 in words is "six hundred eighty-two million, one hundred sixty-six thousand, six hundred eighty-six".