16604773951791 has 16 divisors (see below), whose sum is σ = 22224263331200. Its totient is φ = 11027627301600.

The previous prime is 16604773951771. The next prime is 16604773951813. The reversal of 16604773951791 is 19715937740661.

It is not a de Polignac number, because 16604773951791 - 2⁷ = 16604773951663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16604773951771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6444505 + ... + 8645298.

It is an arithmetic number, because the mean of its divisors is an integer number (1389016458200).

Almost surely, 2^{16604773951791} is an apocalyptic number.

16604773951791 is a deficient number, since it is larger than the sum of its proper divisors (5619489379409).

16604773951791 is a wasteful number, since it uses less digits than its factorization.

16604773951791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15091206.

The product of its (nonzero) digits is 60011280, while the sum is 66.

The spelling of 16604773951791 in words is "sixteen trillion, six hundred four billion, seven hundred seventy-three million, nine hundred fifty-one thousand, seven hundred ninety-one".