6533648539488 has 480 divisors, whose sum is σ = 22428451584000. Its totient is φ = 1865094190848.

The previous prime is 6533648539487. The next prime is 6533648539571. The reversal of 6533648539488 is 8849358463356.

6533648539488 is a `hidden beast` number, since 6 + 5 + 3 + 3 + 6 + 4 + 8 + 539 + 4 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6533648539487) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1279349031 + ... + 1279354137.

It is an arithmetic number, because the mean of its divisors is an integer number (46725940800).

Almost surely, 2^{6533648539488} 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 6533648539488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11214225792000).

6533648539488 is an abundant number, since it is smaller than the sum of its proper divisors (15894803044512).

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

6533648539488 is a wasteful number, since it uses less digits than its factorization.

6533648539488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589 (or 6558 counting only the distinct ones).

The product of its digits is 1791590400, while the sum is 72.

The spelling of 6533648539488 in words is "six trillion, five hundred thirty-three billion, six hundred forty-eight million, five hundred thirty-nine thousand, four hundred eighty-eight".