144442512053320 has 32 divisors (see below), whose sum is σ = 349995317668920. Its totient is φ = 53332619834880.

The previous prime is 144442512053299. The next prime is 144442512053369. The reversal of 144442512053320 is 23350215244441.

It can be written as a sum of positive squares in 4 ways, for example, as 76038992961156 + 68403519092164 = 8720034^2 + 8270642^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 138887030301 + ... + 138887031340.

Almost surely, 2^{144442512053320} is an apocalyptic number.

144442512053320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144442512053320 is an abundant number, since it is smaller than the sum of its proper divisors (205552805615600).

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

144442512053320 is a wasteful number, since it uses less digits than its factorization.

144442512053320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277774061665 (or 277774061661 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 144442512053320 its reverse (23350215244441), we get a palindrome (167792727297761).

The spelling of 144442512053320 in words is "one hundred forty-four trillion, four hundred forty-two billion, five hundred twelve million, fifty-three thousand, three hundred twenty".