6639132192 has 192 divisors, whose sum is σ = 22005043200. Its totient is φ = 1702471680.

The previous prime is 6639132191. The next prime is 6639132221. The reversal of 6639132192 is 2912319366.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6639132191) 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, 578284 + ... + 589652.

It is an arithmetic number, because the mean of its divisors is an integer number (114609600).

Almost surely, 2^6639132192 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 6639132192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11002521600).

6639132192 is an abundant number, since it is smaller than the sum of its proper divisors (15365911008).

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

6639132192 is a wasteful number, since it uses less digits than its factorization.

6639132192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479 (or 11471 counting only the distinct ones).

The product of its digits is 104976, while the sum is 42.

The square root of 6639132192 is about 81480.8700984470. The cubic root of 6639132192 is about 1879.4773890650.

It can be divided in two parts, 6639 and 132192, that added together give a palindrome (138831).

The spelling of 6639132192 in words is "six billion, six hundred thirty-nine million, one hundred thirty-two thousand, one hundred ninety-two".