443960449796161 has 9 divisors (see below), whose sum is σ = 464102829360289. Its totient is φ = 424657357996036.

The previous prime is 443960449796119. The next prime is 443960449796177. The reversal of 443960449796161 is 161697944069344.

The square root of 443960449796161 is 21070369.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 443960449796161 - 2¹⁹ = 443960449271873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (443960449796191) 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 8 ways as a sum of consecutive naturals, for example, 484160436 + ... + 485076538.

Almost surely, 2^{443960449796161} is an apocalyptic number.

443960449796161 is the 21070369-th square number.

443960449796161 is the 10535185-th centered octagonal number.

It is an amenable number.

443960449796161 is a deficient number, since it is larger than the sum of its proper divisors (20142379564128).

443960449796161 is an frugal number, since it uses more digits than its factorization.

443960449796161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832252 (or 916126 counting only the distinct ones).

The product of its (nonzero) digits is 846526464, while the sum is 73.

The spelling of 443960449796161 in words is "four hundred forty-three trillion, nine hundred sixty billion, four hundred forty-nine million, seven hundred ninety-six thousand, one hundred sixty-one".