It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 16442667642707.
Almost surely, 216442667642707 is an apocalyptic number.
16442667642707 is a wasteful number, since it uses less digits than its factorization.
16442667642707 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 104730367308.
The spelling of 16442667642707 in words is "sixteen trillion, four hundred forty-two billion, six hundred sixty-seven million, six hundred forty-two thousand, seven hundred seven".