15940228808 has 24 divisors (see below), whose sum is σ = 34767591750. Its totient is φ = 6831526464.

The previous prime is 15940228793. The next prime is 15940228813. The reversal of 15940228808 is 80882204951.

15940228808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10695282724 + 5244946084 = 103418^2 + 72422^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20331533 + ... + 20332316.

Almost surely, 2^15940228808 is an apocalyptic number.

It is an amenable number.

15940228808 is an abundant number, since it is smaller than the sum of its proper divisors (18827362942).

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

15940228808 is a wasteful number, since it uses less digits than its factorization.

15940228808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40663869 (or 40663858 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 15940228808 in words is "fifteen billion, nine hundred forty million, two hundred twenty-eight thousand, eight hundred eight".