6632218128 has 80 divisors (see below), whose sum is σ = 18418821120. Its totient is φ = 2049810048.

The previous prime is 6632218111. The next prime is 6632218139. The reversal of 6632218128 is 8218122366.

It is a nude number because it is divisible by every one of its digits.

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, 34500 + ... + 120227.

It is an arithmetic number, because the mean of its divisors is an integer number (230235264).

Almost surely, 2^6632218128 is an apocalyptic number.

It is an amenable number.

6632218128 is an abundant number, since it is smaller than the sum of its proper divisors (11786602992).

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

6632218128 is a wasteful number, since it uses less digits than its factorization.

6632218128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154804 (or 154798 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 6632218128 is about 81438.4315173125. The cubic root of 6632218128 is about 1878.8247264290.

The spelling of 6632218128 in words is "six billion, six hundred thirty-two million, two hundred eighteen thousand, one hundred twenty-eight".