16444173853066 has 16 divisors (see below), whose sum is σ = 26117310250944. Its totient is φ = 7738407212224.

The previous prime is 16444173852991. The next prime is 16444173853067. The reversal of 16444173853066 is 66035837144461.

It is a self number, because there is not a number n which added to its sum of digits gives 16444173853066.

It is not an unprimeable number, because it can be changed into a prime (16444173853067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11338611 + ... + 12706393.

It is an arithmetic number, because the mean of its divisors is an integer number (1632331890684).

Almost surely, 2^{16444173853066} is an apocalyptic number.

16444173853066 is a deficient number, since it is larger than the sum of its proper divisors (9673136397878).

16444173853066 is a wasteful number, since it uses less digits than its factorization.

16444173853066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721405.

The product of its (nonzero) digits is 34836480, while the sum is 58.

The spelling of 16444173853066 in words is "sixteen trillion, four hundred forty-four billion, one hundred seventy-three million, eight hundred fifty-three thousand, sixty-six".