2115591296 has 128 divisors (see below), whose sum is σ = 5366995200. Its totient is φ = 807948288.

The previous prime is 2115591281. The next prime is 2115591329. The reversal of 2115591296 is 6921955112.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 334661 + ... + 340923.

It is an arithmetic number, because the mean of its divisors is an integer number (41929650).

Almost surely, 2^2115591296 is an apocalyptic number.

2115591296 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 2115591296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2683497600).

2115591296 is an abundant number, since it is smaller than the sum of its proper divisors (3251403904).

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

2115591296 is a wasteful number, since it uses less digits than its factorization.

2115591296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326 (or 6314 counting only the distinct ones).

The product of its digits is 48600, while the sum is 41.

The square root of 2115591296 is about 45995.5573506833. The cubic root of 2115591296 is about 1283.7405427427.

The spelling of 2115591296 in words is "two billion, one hundred fifteen million, five hundred ninety-one thousand, two hundred ninety-six".