16444173851011 has 2 divisors, whose sum is σ = 16444173851012. Its totient is φ = 16444173851010.

The previous prime is 16444173850987. The next prime is 16444173851051. The reversal of 16444173851011 is 11015837144461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16444173851011 - 2¹⁵ = 16444173818243 is a prime.

It is not a weakly prime, because it can be changed into another prime (16444173851051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8222086925505 + 8222086925506.

It is an arithmetic number, because the mean of its divisors is an integer number (8222086925506).

Almost surely, 2^{16444173851011} is an apocalyptic number.

16444173851011 is a deficient number, since it is larger than the sum of its proper divisors (1).

16444173851011 is an equidigital number, since it uses as much as digits as its factorization.

16444173851011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 16444173851011 in words is "sixteen trillion, four hundred forty-four billion, one hundred seventy-three million, eight hundred fifty-one thousand, eleven".