16444402372117 has 16 divisors (see below), whose sum is σ = 17330881212288. Its totient is φ = 15572531645440.

The previous prime is 16444402372109. The next prime is 16444402372121. The reversal of 16444402372117 is 71127320444461.

It is not a de Polignac number, because 16444402372117 - 2³ = 16444402372109 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 (16444402372157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301203 + ... + 5880640.

It is an arithmetic number, because the mean of its divisors is an integer number (1083180075768).

Almost surely, 2^{16444402372117} is an apocalyptic number.

It is an amenable number.

16444402372117 is a deficient number, since it is larger than the sum of its proper divisors (886478840171).

16444402372117 is a wasteful number, since it uses less digits than its factorization.

16444402372117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182860.

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 16444402372117 in words is "sixteen trillion, four hundred forty-four billion, four hundred two million, three hundred seventy-two thousand, one hundred seventeen".