1668686703596 has 24 divisors (see below), whose sum is σ = 3373067241936. Its totient is φ = 713876664320.

The previous prime is 1668686703587. The next prime is 1668686703611. The reversal of 1668686703596 is 6953076868661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115431541 + ... + 1115433036.

It is an arithmetic number, because the mean of its divisors is an integer number (140544468414).

Almost surely, 2^{1668686703596} is an apocalyptic number.

It is an amenable number.

1668686703596 is an abundant number, since it is smaller than the sum of its proper divisors (1704380538340).

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

1668686703596 is a wasteful number, since it uses less digits than its factorization.

1668686703596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230864609 (or 2230864607 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 71.

The spelling of 1668686703596 in words is "one trillion, six hundred sixty-eight billion, six hundred eighty-six million, seven hundred three thousand, five hundred ninety-six".