540321545544 has 128 divisors (see below), whose sum is σ = 1496524723200. Its totient is φ = 161205500160.

The previous prime is 540321545509. The next prime is 540321545549. The reversal of 540321545544 is 445545123045.

It is a junction number, because it is equal to n+sod(n) for n = 540321545496 and 540321545505.

It is not an unprimeable number, because it can be changed into a prime (540321545549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4646787 + ... + 4761645.

It is an arithmetic number, because the mean of its divisors is an integer number (11691599400).

Almost surely, 2^540321545544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540321545544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748262361600).

540321545544 is an abundant number, since it is smaller than the sum of its proper divisors (956203177656).

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

540321545544 is a wasteful number, since it uses less digits than its factorization.

540321545544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115155 (or 115151 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 42.

Adding to 540321545544 its reverse (445545123045), we get a palindrome (985866668589).

The spelling of 540321545544 in words is "five hundred forty billion, three hundred twenty-one million, five hundred forty-five thousand, five hundred forty-four".