6540081152 has 96 divisors (see below), whose sum is σ = 15105832560. Its totient is φ = 2797731840.

The previous prime is 6540081139. The next prime is 6540081199. The reversal of 6540081152 is 2511800456.

It is a super-2 number, since 2×6540081152² = 85545322949491294208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374438 + ... + 391514.

Almost surely, 2^6540081152 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 6540081152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7552916280).

6540081152 is an abundant number, since it is smaller than the sum of its proper divisors (8565751408).

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

6540081152 is a wasteful number, since it uses less digits than its factorization.

6540081152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17127 (or 17107 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 6540081152 is about 80870.7682169522. The cubic root of 6540081152 is about 1870.0837039181.

The spelling of 6540081152 in words is "six billion, five hundred forty million, eighty-one thousand, one hundred fifty-two".