2115942656 has 36 divisors (see below), whose sum is σ = 4236549744. Its totient is φ = 1054732800.

The previous prime is 2115942649. The next prime is 2115942701. The reversal of 2115942656 is 6562495112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72251 + ... + 97221.

Almost surely, 2^2115942656 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 2115942656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2118274872).

2115942656 is an abundant number, since it is smaller than the sum of its proper divisors (2120607088).

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

2115942656 is an equidigital number, since it uses as much as digits as its factorization.

2115942656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25318 (or 25304 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 2115942656 is about 45999.3766914292. The cubic root of 2115942656 is about 1283.8116072106.

The spelling of 2115942656 in words is "two billion, one hundred fifteen million, nine hundred forty-two thousand, six hundred fifty-six".