665682714 has 24 divisors (see below), whose sum is σ = 1473001920. Its totient is φ = 217172808.

The previous prime is 665682707. The next prime is 665682751. The reversal of 665682714 is 417286566.

665682714 is a `hidden beast` number, since 66 + 568 + 27 + 1 + 4 = 666.

665682714 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 665682714.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392584 + ... + 394275.

It is an arithmetic number, because the mean of its divisors is an integer number (61375080).

Almost surely, 2^665682714 is an apocalyptic number.

665682714 is an abundant number, since it is smaller than the sum of its proper divisors (807319206).

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

665682714 is a wasteful number, since it uses less digits than its factorization.

665682714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786914 (or 786911 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 665682714 is about 25800.8277774183. The cubic root of 665682714 is about 873.1504722068.

The spelling of 665682714 in words is "six hundred sixty-five million, six hundred eighty-two thousand, seven hundred fourteen".