6540012563260 has 192 divisors, whose sum is σ = 15966357120000. Its totient is φ = 2225295452160.

The previous prime is 6540012563251. The next prime is 6540012563267. The reversal of 6540012563260 is 623652100456.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540012563267) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 113930646 + ... + 113988034.

It is an arithmetic number, because the mean of its divisors is an integer number (83158110000).

Almost surely, 2^{6540012563260} 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 6540012563260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7983178560000).

6540012563260 is an abundant number, since it is smaller than the sum of its proper divisors (9426344556740).

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

6540012563260 is a wasteful number, since it uses less digits than its factorization.

6540012563260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57764 (or 57762 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 6540012563260 in words is "six trillion, five hundred forty billion, twelve million, five hundred sixty-three thousand, two hundred sixty".