1668311682 has 24 divisors (see below), whose sum is σ = 3521482416. Its totient is φ = 526834584.

The previous prime is 1668311657. The next prime is 1668311699. The reversal of 1668311682 is 2861138661.

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 11 ways as a sum of consecutive naturals, for example, 382948 + ... + 387279.

It is an arithmetic number, because the mean of its divisors is an integer number (146728434).

Almost surely, 2^1668311682 is an apocalyptic number.

1668311682 is an abundant number, since it is smaller than the sum of its proper divisors (1853170734).

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

1668311682 is a wasteful number, since it uses less digits than its factorization.

1668311682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770270 (or 770251 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 1668311682 is about 40844.9713183888. The cubic root of 1668311682 is about 1186.0210494991.

The spelling of 1668311682 in words is "one billion, six hundred sixty-eight million, three hundred eleven thousand, six hundred eighty-two".