144359669561 has 8 divisors (see below), whose sum is σ = 145567436040. Its totient is φ = 143156194432.

The previous prime is 144359669491. The next prime is 144359669569. The reversal of 144359669561 is 165966953441.

144359669561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18132238336 + 126227431225 = 134656^2 + 355285^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 144359669561 - 2²⁶ = 144292560697 is a prime.

It is a super-2 number, since 2×144359669561² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144359669561.

It is not an unprimeable number, because it can be changed into a prime (144359669569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005260 + ... + 1139853.

It is an arithmetic number, because the mean of its divisors is an integer number (18195929505).

Almost surely, 2^144359669561 is an apocalyptic number.

It is an amenable number.

144359669561 is a deficient number, since it is larger than the sum of its proper divisors (1207766479).

144359669561 is a wasteful number, since it uses less digits than its factorization.

144359669561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145675.

The product of its digits is 20995200, while the sum is 59.

The spelling of 144359669561 in words is "one hundred forty-four billion, three hundred fifty-nine million, six hundred sixty-nine thousand, five hundred sixty-one".