144114421565 has 8 divisors (see below), whose sum is σ = 172939374648. Its totient is φ = 115290158080.

The previous prime is 144114421541. The next prime is 144114421573. The reversal of 144114421565 is 565124411441.

It can be written as a sum of positive squares in 4 ways, for example, as 6504583801 + 137609837764 = 80651^2 + 370958^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144114421565 - 2⁶ = 144114421501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610985 + ... + 813345.

It is an arithmetic number, because the mean of its divisors is an integer number (21617421831).

Almost surely, 2^144114421565 is an apocalyptic number.

It is an amenable number.

144114421565 is a deficient number, since it is larger than the sum of its proper divisors (28824953083).

144114421565 is a wasteful number, since it uses less digits than its factorization.

144114421565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344799.

The product of its digits is 76800, while the sum is 38.

The spelling of 144114421565 in words is "one hundred forty-four billion, one hundred fourteen million, four hundred twenty-one thousand, five hundred sixty-five".