2116640232 has 96 divisors (see below), whose sum is σ = 6559937280. Its totient is φ = 603976320.

The previous prime is 2116640231. The next prime is 2116640237. The reversal of 2116640232 is 2320466112.

2116640232 is a `hidden beast` number, since 2 + 1 + 16 + 640 + 2 + 3 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2116640196 and 2116640205.

It is not an unprimeable number, because it can be changed into a prime (2116640231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472033 + ... + 476495.

It is an arithmetic number, because the mean of its divisors is an integer number (68332680).

Almost surely, 2^2116640232 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 2116640232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3279968640).

2116640232 is an abundant number, since it is smaller than the sum of its proper divisors (4443297048).

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

2116640232 is a wasteful number, since it uses less digits than its factorization.

2116640232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423 (or 5416 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2116640232 is about 46006.9585171635. The cubic root of 2116640232 is about 1283.9526724338.

The spelling of 2116640232 in words is "two billion, one hundred sixteen million, six hundred forty thousand, two hundred thirty-two".