13537103440 has 160 divisors (see below), whose sum is σ = 36636297984. Its totient is φ = 4555837440.

The previous prime is 13537103369. The next prime is 13537103441. The reversal of 13537103440 is 4430173531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13537103441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15795492 + ... + 15796348.

Almost surely, 2^13537103440 is an apocalyptic number.

13537103440 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 13537103440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18318148992).

13537103440 is an abundant number, since it is smaller than the sum of its proper divisors (23099194544).

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

13537103440 is a wasteful number, since it uses less digits than its factorization.

13537103440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 13537103440 its reverse (4430173531), we get a palindrome (17967276971).

The spelling of 13537103440 in words is "thirteen billion, five hundred thirty-seven million, one hundred three thousand, four hundred forty".