682166856 has 128 divisors (see below), whose sum is σ = 2019144960. Its totient is φ = 188006400.

The previous prime is 682166851. The next prime is 682166887. The reversal of 682166856 is 658661286.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (682166851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667626 + ... + 668646.

It is an arithmetic number, because the mean of its divisors is an integer number (15774570).

Almost surely, 2^682166856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 682166856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009572480).

682166856 is an abundant number, since it is smaller than the sum of its proper divisors (1336978104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

682166856 is a wasteful number, since it uses less digits than its factorization.

682166856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175 (or 1171 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 682166856 is about 26118.3241422569. The cubic root of 682166856 is about 880.2989927540.

The spelling of 682166856 in words is "six hundred eighty-two million, one hundred sixty-six thousand, eight hundred fifty-six".