144643161346441 has 4 divisors (see below), whose sum is σ = 153151582602132. Its totient is φ = 136134740090752.

The previous prime is 144643161346379. The next prime is 144643161346459.

It is a happy number.

144643161346441 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79755544915216 + 64887616431225 = 8930596^2 + 8055285^2 .

It is a cyclic number.

It is not a de Polignac number, because 144643161346441 - 2³³ = 144634571411849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144643161346241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4254210627820 + ... + 4254210627853.

It is an arithmetic number, because the mean of its divisors is an integer number (38287895650533).

Almost surely, 2^{144643161346441} is an apocalyptic number.

It is an amenable number.

144643161346441 is a deficient number, since it is larger than the sum of its proper divisors (8508421255691).

144643161346441 is an equidigital number, since it uses as much as digits as its factorization.

144643161346441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8508421255690.

The product of its digits is 7962624, while the sum is 52.

The spelling of 144643161346441 in words is "one hundred forty-four trillion, six hundred forty-three billion, one hundred sixty-one million, three hundred forty-six thousand, four hundred forty-one".