2656543232 has 100 divisors (see below), whose sum is σ = 6195044526. Its totient is φ = 1137991680.

The previous prime is 2656543207. The next prime is 2656543291. The reversal of 2656543232 is 2323456562.

It can be written as a sum of positive squares in only one way, i.e., 2139617536 + 516925696 = 46256^2 + 22736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1228232 + ... + 1230392.

Almost surely, 2^2656543232 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 2656543232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3097522263).

2656543232 is an abundant number, since it is smaller than the sum of its proper divisors (3538501294).

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

2656543232 is an frugal number, since it uses more digits than its factorization.

2656543232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207 (or 2170 counting only the distinct ones).

The product of its digits is 259200, while the sum is 38.

The square root of 2656543232 is about 51541.6650099703. The cubic root of 2656543232 is about 1384.9655240411.

Adding to 2656543232 its reverse (2323456562), we get a palindrome (4979999794).

The spelling of 2656543232 in words is "two billion, six hundred fifty-six million, five hundred forty-three thousand, two hundred thirty-two".