144044166644321 has 4 divisors (see below), whose sum is σ = 144044819572992. Its totient is φ = 144043513715652.

The previous prime is 144044166644317. The next prime is 144044166644341. The reversal of 144044166644321 is 123446661440441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144044166644321 - 2² = 144044166644317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144044166644321.

It is not an unprimeable number, because it can be changed into a prime (144044166644341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326133305 + ... + 326574678.

It is an arithmetic number, because the mean of its divisors is an integer number (36011204893248).

Almost surely, 2^{144044166644321} is an apocalyptic number.

It is an amenable number.

144044166644321 is a deficient number, since it is larger than the sum of its proper divisors (652928671).

144044166644321 is an equidigital number, since it uses as much as digits as its factorization.

144044166644321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652928670.

The product of its (nonzero) digits is 5308416, while the sum is 50.

The spelling of 144044166644321 in words is "one hundred forty-four trillion, forty-four billion, one hundred sixty-six million, six hundred forty-four thousand, three hundred twenty-one".