144466351405421 has 8 divisors (see below), whose sum is σ = 144493037074584. Its totient is φ = 144439666378560.

The previous prime is 144466351405357. The next prime is 144466351405477. The reversal of 144466351405421 is 124504153664441.

It can be written as a sum of positive squares in 4 ways, for example, as 76632761112196 + 67833590293225 = 8754014^2 + 8236115^2 .

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 144466351405421 - 2⁶ = 144466351405357 is a prime.

It is a super-2 number, since 2×144466351405421² (a number of 29 digits) contains 22 as substring.

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 144466351405421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144466351405121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900824375 + ... + 900984731.

It is an arithmetic number, because the mean of its divisors is an integer number (18061629634323).

Almost surely, 2^{144466351405421} is an apocalyptic number.

It is an amenable number.

144466351405421 is a deficient number, since it is larger than the sum of its proper divisors (26685669163).

144466351405421 is a wasteful number, since it uses less digits than its factorization.

144466351405421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321151.

The product of its (nonzero) digits is 5529600, while the sum is 50.

The spelling of 144466351405421 in words is "one hundred forty-four trillion, four hundred sixty-six billion, three hundred fifty-one million, four hundred five thousand, four hundred twenty-one".