2115433216 has 144 divisors (see below), whose sum is σ = 4867581600. Its totient is φ = 908918784.

The previous prime is 2115433181. The next prime is 2115433219. The reversal of 2115433216 is 6123345112.

It is a super-2 number, since 2×2115433216² = 8950115382712205312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2115433219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7863930 + ... + 7864198.

It is an arithmetic number, because the mean of its divisors is an integer number (33802650).

Almost surely, 2^2115433216 is an apocalyptic number.

2115433216 is a gapful number since it is divisible by the number (26) 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 2115433216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2433790800).

2115433216 is an abundant number, since it is smaller than the sum of its proper divisors (2752148384).

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

2115433216 is a wasteful number, since it uses less digits than its factorization.

2115433216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 440 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 2115433216 is about 45993.8388917472. The cubic root of 2115433216 is about 1283.7085676380.

Adding to 2115433216 its reverse (6123345112), we get a palindrome (8238778328).

The spelling of 2115433216 in words is "two billion, one hundred fifteen million, four hundred thirty-three thousand, two hundred sixteen".