6581530752 has 32 divisors (see below), whose sum is σ = 17482192080. Its totient is φ = 2193843456.

The previous prime is 6581530741. The next prime is 6581530757. The reversal of 6581530752 is 2570351856.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (6581530757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8569318 + ... + 8570085.

Almost surely, 2^6581530752 is an apocalyptic number.

It is an amenable number.

6581530752 is an abundant number, since it is smaller than the sum of its proper divisors (10900661328).

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

6581530752 is a wasteful number, since it uses less digits than its factorization.

6581530752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17139420 (or 17139408 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 6581530752 is about 81126.6340482582. The cubic root of 6581530752 is about 1874.0261136940.

The spelling of 6581530752 in words is "six billion, five hundred eighty-one million, five hundred thirty thousand, seven hundred fifty-two".