144684221761 has 8 divisors (see below), whose sum is σ = 145222763840. Its totient is φ = 144145872432.

The previous prime is 144684221743. The next prime is 144684221767. The reversal of 144684221761 is 167122486441.

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 144684221761 - 2⁹ = 144684221249 is a prime.

It is a super-2 number, since 2×144684221761² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144684221767) 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 7 ways as a sum of consecutive naturals, for example, 1554580 + ... + 1645018.

It is an arithmetic number, because the mean of its divisors is an integer number (18152845480).

Almost surely, 2^144684221761 is an apocalyptic number.

It is an amenable number.

144684221761 is a deficient number, since it is larger than the sum of its proper divisors (538542079).

144684221761 is an equidigital number, since it uses as much as digits as its factorization.

144684221761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96375.

The product of its digits is 516096, while the sum is 46.

The spelling of 144684221761 in words is "one hundred forty-four billion, six hundred eighty-four million, two hundred twenty-one thousand, seven hundred sixty-one".