13500223040 has 28 divisors (see below), whose sum is σ = 32147406876. Its totient is φ = 5400089088.

The previous prime is 13500223027. The next prime is 13500223067. The reversal of 13500223040 is 4032200531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8737014784 + 4763208256 = 93472^2 + 69016^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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 3 ways as a sum of consecutive naturals, for example, 21093779 + ... + 21094418.

Almost surely, 2^13500223040 is an apocalyptic number.

13500223040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13500223040 is an abundant number, since it is smaller than the sum of its proper divisors (18647183836).

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

13500223040 is an equidigital number, since it uses as much as digits as its factorization.

13500223040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42188214 (or 42188204 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 13500223040 its reverse (4032200531), we get a palindrome (17532423571).

The spelling of 13500223040 in words is "thirteen billion, five hundred million, two hundred twenty-three thousand, forty".