2115111208 has 64 divisors (see below), whose sum is σ = 4612717440. Its totient is φ = 890486784.

The previous prime is 2115111181. The next prime is 2115111221. The reversal of 2115111208 is 8021115112.

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, 2164416 + ... + 2165392.

It is an arithmetic number, because the mean of its divisors is an integer number (72073710).

Almost surely, 2^2115111208 is an apocalyptic number.

2115111208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115111208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2306358720).

2115111208 is an abundant number, since it is smaller than the sum of its proper divisors (2497606232).

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

2115111208 is a wasteful number, since it uses less digits than its factorization.

2115111208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1630 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 22.

The square root of 2115111208 is about 45990.3382027138. The cubic root of 2115111208 is about 1283.6434296163.

The spelling of 2115111208 in words is "two billion, one hundred fifteen million, one hundred eleven thousand, two hundred eight".