2321512416 has 144 divisors (see below), whose sum is σ = 6970803840. Its totient is φ = 730840320.

The previous prime is 2321512409. The next prime is 2321512433. The reversal of 2321512416 is 6142151232.

2321512416 is a `hidden beast` number, since 23 + 215 + 12 + 416 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 2321512416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3124141 + ... + 3124883.

It is an arithmetic number, because the mean of its divisors is an integer number (48408360).

Almost surely, 2^2321512416 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 2321512416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3485401920).

2321512416 is an abundant number, since it is smaller than the sum of its proper divisors (4649291424).

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

2321512416 is a wasteful number, since it uses less digits than its factorization.

2321512416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1338 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2321512416 is about 48182.0756713531. The cubic root of 2321512416 is about 1324.1087949835.

Adding to 2321512416 its reverse (6142151232), we get a palindrome (8463663648).

The spelling of 2321512416 in words is "two billion, three hundred twenty-one million, five hundred twelve thousand, four hundred sixteen".