2321446656 has 144 divisors (see below), whose sum is σ = 6418879488. Its totient is φ = 744038400.

The previous prime is 2321446591. The next prime is 2321446681. The reversal of 2321446656 is 6566441232.

It is a super-2 number, since 2×2321446656² = 10778229153307164672, which contains 22 as substring.

It is a congruent number.

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, 6689875 + ... + 6690221.

It is an arithmetic number, because the mean of its divisors is an integer number (44575552).

Almost surely, 2^2321446656 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 2321446656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3209439744).

2321446656 is an abundant number, since it is smaller than the sum of its proper divisors (4097432832).

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

2321446656 is a wasteful number, since it uses less digits than its factorization.

2321446656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 664 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 2321446656 is about 48181.3932550731. The cubic root of 2321446656 is about 1324.0962924706.

Adding to 2321446656 its reverse (6566441232), we get a palindrome (8887887888).

The spelling of 2321446656 in words is "two billion, three hundred twenty-one million, four hundred forty-six thousand, six hundred fifty-six".