6558581232 has 160 divisors (see below), whose sum is σ = 22780684800. Its totient is φ = 1763638272.

The previous prime is 6558581231. The next prime is 6558581243. The reversal of 6558581232 is 2321858556.

6558581232 is a `hidden beast` number, since 6 + 558 + 58 + 12 + 32 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6558581231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12382 + ... + 115197.

It is an arithmetic number, because the mean of its divisors is an integer number (142379280).

Almost surely, 2^6558581232 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 6558581232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11390342400).

6558581232 is an abundant number, since it is smaller than the sum of its proper divisors (16222103568).

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

6558581232 is a wasteful number, since it uses less digits than its factorization.

6558581232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127620 (or 127608 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 6558581232 is about 80985.0679570006. The cubic root of 6558581232 is about 1871.8453603359.

The spelling of 6558581232 in words is "six billion, five hundred fifty-eight million, five hundred eighty-one thousand, two hundred thirty-two".