6572540574640 has 320 divisors, whose sum is σ = 16670121615360. Its totient is φ = 2402400788480.

The previous prime is 6572540574601. The next prime is 6572540574643. The reversal of 6572540574640 is 464750452756.

It is a super-2 number, since 2×6572540574640² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6572540574643) 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, 2536679745 + ... + 2536682335.

It is an arithmetic number, because the mean of its divisors is an integer number (52094130048).

Almost surely, 2^{6572540574640} 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 6572540574640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8335060807680).

6572540574640 is an abundant number, since it is smaller than the sum of its proper divisors (10097581040720).

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

6572540574640 is a wasteful number, since it uses less digits than its factorization.

6572540574640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 55.

The spelling of 6572540574640 in words is "six trillion, five hundred seventy-two billion, five hundred forty million, five hundred seventy-four thousand, six hundred forty".