144440326602061 has 6 divisors (see below), whose sum is σ = 168022420741230. Its totient is φ = 123805994230296.

The previous prime is 144440326602053. The next prime is 144440326602067. The reversal of 144440326602061 is 160206623044441.

It can be written as a sum of positive squares in only one way, i.e., 114097646722500 + 30342679879561 = 10681650^2 + 5508419^2 .

It is not a de Polignac number, because 144440326602061 - 2³ = 144440326602053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144440326601999 and 144440326602017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144440326602067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1473880883646 + ... + 1473880883743.

It is an arithmetic number, because the mean of its divisors is an integer number (28003736790205).

Almost surely, 2^{144440326602061} is an apocalyptic number.

It is an amenable number.

144440326602061 is a deficient number, since it is larger than the sum of its proper divisors (23582094139169).

144440326602061 is an equidigital number, since it uses as much as digits as its factorization.

144440326602061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947761767403 (or 2947761767396 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 144440326602061 in words is "one hundred forty-four trillion, four hundred forty billion, three hundred twenty-six million, six hundred two thousand, sixty-one".