144454511340520 has 32 divisors (see below), whose sum is σ = 325817326960200. Its totient is φ = 57640528723968.

The previous prime is 144454511340493. The next prime is 144454511340541. The reversal of 144454511340520 is 25043115454441.

It can be written as a sum of positive squares in 4 ways, for example, as 101179980498276 + 43274530842244 = 10058826^2 + 6578338^2 .

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, 4414852569 + ... + 4414885288.

Almost surely, 2^{144454511340520} is an apocalyptic number.

144454511340520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144454511340520 is an abundant number, since it is smaller than the sum of its proper divisors (181362815619680).

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

144454511340520 is a wasteful number, since it uses less digits than its factorization.

144454511340520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8829738277 (or 8829738273 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 43.

Adding to 144454511340520 its reverse (25043115454441), we get a palindrome (169497626794961).

The spelling of 144454511340520 in words is "one hundred forty-four trillion, four hundred fifty-four billion, five hundred eleven million, three hundred forty thousand, five hundred twenty".