6550631328 has 96 divisors (see below), whose sum is σ = 17790216192. Its totient is φ = 2108332800.

The previous prime is 6550631303. The next prime is 6550631371. The reversal of 6550631328 is 8231360556.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1458975 + ... + 1463457.

It is an arithmetic number, because the mean of its divisors is an integer number (185314752).

Almost surely, 2^6550631328 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 6550631328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8895108096).

6550631328 is an abundant number, since it is smaller than the sum of its proper divisors (11239584864).

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

6550631328 is a wasteful number, since it uses less digits than its factorization.

6550631328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018 (or 5010 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 6550631328 is about 80935.9705446225. The cubic root of 6550631328 is about 1871.0887430612.

The spelling of 6550631328 in words is "six billion, five hundred fifty million, six hundred thirty-one thousand, three hundred twenty-eight".