540042324656 has 160 divisors (see below), whose sum is σ = 1198561287168. Its totient is φ = 234292551680.

The previous prime is 540042324593. The next prime is 540042324659. The reversal of 540042324656 is 656423240045.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (540042324659) 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, 21276485 + ... + 21301851.

Almost surely, 2^540042324656 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 540042324656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599280643584).

540042324656 is an abundant number, since it is smaller than the sum of its proper divisors (658518962512).

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

540042324656 is a wasteful number, since it uses less digits than its factorization.

540042324656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25539 (or 25533 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 540042324656 in words is "five hundred forty billion, forty-two million, three hundred twenty-four thousand, six hundred fifty-six".