6558720132 has 48 divisors (see below), whose sum is σ = 15580051200. Its totient is φ = 2146839840.

The previous prime is 6558720101. The next prime is 6558720149. The reversal of 6558720132 is 2310278556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716907 + ... + 725997.

It is an arithmetic number, because the mean of its divisors is an integer number (324584400).

Almost surely, 2^6558720132 is an apocalyptic number.

It is an amenable number.

6558720132 is an abundant number, since it is smaller than the sum of its proper divisors (9021331068).

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

6558720132 is a wasteful number, since it uses less digits than its factorization.

6558720132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10176 (or 10174 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 6558720132 is about 80985.9255179565. The cubic root of 6558720132 is about 1871.8585744481.

Adding to 6558720132 its reverse (2310278556), we get a palindrome (8868998688).

The spelling of 6558720132 in words is "six billion, five hundred fifty-eight million, seven hundred twenty thousand, one hundred thirty-two".