16444173852994 has 16 divisors (see below), whose sum is σ = 25502936067000. Its totient is φ = 7946177963904.

The previous prime is 16444173852991. The next prime is 16444173853067. The reversal of 16444173852994 is 49925837144461.

It can be written as a sum of positive squares in 4 ways, for example, as 16064023920025 + 380149932969 = 4007995^2 + 616563^2 .

It is not an unprimeable number, because it can be changed into a prime (16444173852991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745688859 + ... + 745710910.

Almost surely, 2^{16444173852994} is an apocalyptic number.

16444173852994 is a deficient number, since it is larger than the sum of its proper divisors (9058762214006).

16444173852994 is a wasteful number, since it uses less digits than its factorization.

16444173852994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491399957.

The product of its digits is 209018880, while the sum is 67.

The spelling of 16444173852994 in words is "sixteen trillion, four hundred forty-four billion, one hundred seventy-three million, eight hundred fifty-two thousand, nine hundred ninety-four".