14515325440 has 160 divisors (see below), whose sum is σ = 43391044224. Its totient is φ = 4524195840.

The previous prime is 14515325371. The next prime is 14515325449. The reversal of 14515325440 is 4452351541.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×14515325440² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14515325396 and 14515325405.

It is not an unprimeable number, because it can be changed into a prime (14515325449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160302 + ... + 233938.

Almost surely, 2^14515325440 is an apocalyptic number.

14515325440 is a gapful number since it is divisible by the number (10) 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 14515325440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21695522112).

14515325440 is an abundant number, since it is smaller than the sum of its proper divisors (28875718784).

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

14515325440 is an equidigital number, since it uses as much as digits as its factorization.

14515325440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73678 (or 73662 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 14515325440 its reverse (4452351541), we get a palindrome (18967676981).

The spelling of 14515325440 in words is "fourteen billion, five hundred fifteen million, three hundred twenty-five thousand, four hundred forty".