13635223032 has 128 divisors (see below), whose sum is σ = 36064258560. Its totient is φ = 4287528960.

The previous prime is 13635222989. The next prime is 13635223033. The reversal of 13635223032 is 23032253631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13635223033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13955728 + ... + 13956704.

It is an arithmetic number, because the mean of its divisors is an integer number (281752020).

Almost surely, 2^13635223032 is an apocalyptic number.

13635223032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13635223032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18032129280).

13635223032 is an abundant number, since it is smaller than the sum of its proper divisors (22429035528).

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

13635223032 is a wasteful number, since it uses less digits than its factorization.

13635223032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 13635223032 its reverse (23032253631), we get a palindrome (36667476663).

The spelling of 13635223032 in words is "thirteen billion, six hundred thirty-five million, two hundred twenty-three thousand, thirty-two".