11640682228 has 24 divisors (see below), whose sum is σ = 23420783232. Its totient is φ = 4958988384.

The previous prime is 11640682219. The next prime is 11640682247. The reversal of 11640682228 is 82228604611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240051 + ... + 1249402.

It is an arithmetic number, because the mean of its divisors is an integer number (975865968).

Almost surely, 2^11640682228 is an apocalyptic number.

It is an amenable number.

11640682228 is an abundant number, since it is smaller than the sum of its proper divisors (11780101004).

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

11640682228 is a wasteful number, since it uses less digits than its factorization.

11640682228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489631 (or 2489629 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 11640682228 in words is "eleven billion, six hundred forty million, six hundred eighty-two thousand, two hundred twenty-eight".