144312222213440 has 56 divisors (see below), whose sum is σ = 343698652215240. Its totient is φ = 57715620968448.

The previous prime is 144312222213431. The next prime is 144312222213469. The reversal of 144312222213440 is 44312222213441.

It can be written as a sum of positive squares in 4 ways, for example, as 53734060443904 + 90578161769536 = 7330352^2 + 9517256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144312222213440.

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, 34206407 + ... + 38192966.

It is an arithmetic number, because the mean of its divisors is an integer number (6137475932415).

Almost surely, 2^{144312222213440} is an apocalyptic number.

144312222213440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144312222213440 is an abundant number, since it is smaller than the sum of its proper divisors (199386430001800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144312222213440 is an equidigital number, since it uses as much as digits as its factorization.

144312222213440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72405619 (or 72405609 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 144312222213440 its reverse (44312222213441), we get a palindrome (188624444426881).

Subtracting from 144312222213440 its reverse (44312222213441), we obtain a palindrome (99999999999999).

The spelling of 144312222213440 in words is "one hundred forty-four trillion, three hundred twelve billion, two hundred twenty-two million, two hundred thirteen thousand, four hundred forty".