1668500188856 has 16 divisors (see below), whose sum is σ = 3264456891600. Its totient is φ = 797978351104.

The previous prime is 1668500188843. The next prime is 1668500188889. The reversal of 1668500188856 is 6588810058661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4533967721 + ... + 4533968088.

It is an arithmetic number, because the mean of its divisors is an integer number (204028555725).

Almost surely, 2^{1668500188856} is an apocalyptic number.

It is an amenable number.

1668500188856 is a deficient number, since it is larger than the sum of its proper divisors (1595956702744).

1668500188856 is a wasteful number, since it uses less digits than its factorization.

1668500188856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9067935838 (or 9067935834 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 62.

The spelling of 1668500188856 in words is "one trillion, six hundred sixty-eight billion, five hundred million, one hundred eighty-eight thousand, eight hundred fifty-six".