3232621664 has 72 divisors (see below), whose sum is σ = 6809212872. Its totient is φ = 1509742080.

The previous prime is 3232621663. The next prime is 3232621727. The reversal of 3232621664 is 4661262323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3232621663) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 725684 + ... + 730124.

It is an arithmetic number, because the mean of its divisors is an integer number (94572401).

Almost surely, 2^3232621664 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 3232621664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3404606436).

3232621664 is an abundant number, since it is smaller than the sum of its proper divisors (3576591208).

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

3232621664 is a wasteful number, since it uses less digits than its factorization.

3232621664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540 (or 4509 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 3232621664 is about 56856.1488671190. The cubic root of 3232621664 is about 1478.6031475853.

Adding to 3232621664 its reverse (4661262323), we get a palindrome (7893883987).

The spelling of 3232621664 in words is "three billion, two hundred thirty-two million, six hundred twenty-one thousand, six hundred sixty-four".