16668516683336 has 64 divisors (see below), whose sum is σ = 36531370176000. Its totient is φ = 7127151462144.

The previous prime is 16668516683327. The next prime is 16668516683369. The reversal of 16668516683336 is 63338661586661.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5826320 + ... + 8202623.

It is an arithmetic number, because the mean of its divisors is an integer number (570802659000).

Almost surely, 2^{16668516683336} is an apocalyptic number.

It is an amenable number.

16668516683336 is an abundant number, since it is smaller than the sum of its proper divisors (19862853492664).

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

16668516683336 is a wasteful number, since it uses less digits than its factorization.

16668516683336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14029403 (or 14029385 counting only the distinct ones).

The product of its digits is 403107840, while the sum is 68.

The spelling of 16668516683336 in words is "sixteen trillion, six hundred sixty-eight billion, five hundred sixteen million, six hundred eighty-three thousand, three hundred thirty-six".