15432201232 has 80 divisors (see below), whose sum is σ = 35136751104. Its totient is φ = 6428160000.

The previous prime is 15432201221. The next prime is 15432201251. The reversal of 15432201232 is 23210223451.

It is a junction number, because it is equal to n+sod(n) for n = 15432201197 and 15432201206.

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, 1238232 + ... + 1250632.

Almost surely, 2^15432201232 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 15432201232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17568375552).

15432201232 is an abundant number, since it is smaller than the sum of its proper divisors (19704549872).

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

15432201232 is a wasteful number, since it uses less digits than its factorization.

15432201232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12728 (or 12722 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 15432201232 its reverse (23210223451), we get a palindrome (38642424683).

The spelling of 15432201232 in words is "fifteen billion, four hundred thirty-two million, two hundred one thousand, two hundred thirty-two".