32331220432 has 160 divisors (see below), whose sum is σ = 78423980544. Its totient is φ = 12596428800.

The previous prime is 32331220423. The next prime is 32331220511. The reversal of 32331220432 is 23402213323.

It is a junction number, because it is equal to n+sod(n) for n = 32331220397 and 32331220406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8038582 + ... + 8042602.

Almost surely, 2^32331220432 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 32331220432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39211990272).

32331220432 is an abundant number, since it is smaller than the sum of its proper divisors (46092760112).

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

32331220432 is a wasteful number, since it uses less digits than its factorization.

32331220432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197 (or 4191 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 32331220432 its reverse (23402213323), we get a palindrome (55733433755).

The spelling of 32331220432 in words is "thirty-two billion, three hundred thirty-one million, two hundred twenty thousand, four hundred thirty-two".