144571433680 has 40 divisors (see below), whose sum is σ = 336927066984. Its totient is φ = 57691200000.

The previous prime is 144571433653. The next prime is 144571433681. The reversal of 144571433680 is 86334175441.

It can be written as a sum of positive squares in 4 ways, for example, as 350737984 + 144220695696 = 18728^2 + 379764^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 144571433680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144571433681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2112571 + ... + 2179930.

Almost surely, 2^144571433680 is an apocalyptic number.

144571433680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144571433680 is an abundant number, since it is smaller than the sum of its proper divisors (192355633304).

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

144571433680 is a wasteful number, since it uses less digits than its factorization.

144571433680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4292935 (or 4292929 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 144571433680 in words is "one hundred forty-four billion, five hundred seventy-one million, four hundred thirty-three thousand, six hundred eighty".