144040043220020 has 24 divisors (see below), whose sum is σ = 302490600967464. Its totient is φ = 57614777248896.

The previous prime is 144040043220019. The next prime is 144040043220041. The reversal of 144040043220020 is 20022340040441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34004432894224 + 110035610325796 = 5831332^2 + 10489786^2 .

It is a congruent number.

It is an unprimeable number.

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, 76549667 + ... + 78408746.

It is an arithmetic number, because the mean of its divisors is an integer number (12603775040311).

Almost surely, 2^{144040043220020} is an apocalyptic number.

144040043220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144040043220020 is an abundant number, since it is smaller than the sum of its proper divisors (158450557747444).

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

144040043220020 is a wasteful number, since it uses less digits than its factorization.

144040043220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155004899 (or 155004897 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 144040043220020 its reverse (20022340040441), we get a palindrome (164062383260461).

The spelling of 144040043220020 in words is "one hundred forty-four trillion, forty billion, forty-three million, two hundred twenty thousand, twenty".