13104440135540 has 96 divisors (see below), whose sum is σ = 30595759810560. Its totient is φ = 4681935244800.

The previous prime is 13104440135531. The next prime is 13104440135573. The reversal of 13104440135540 is 4553104440131.

It is a super-2 number, since 2×13104440135540² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13104440135540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72683705 + ... + 72863775.

It is an arithmetic number, because the mean of its divisors is an integer number (318705831360).

Almost surely, 2^{13104440135540} is an apocalyptic number.

13104440135540 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 13104440135540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15297879905280).

13104440135540 is an abundant number, since it is smaller than the sum of its proper divisors (17491319675020).

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

13104440135540 is a wasteful number, since it uses less digits than its factorization.

13104440135540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189153 (or 189151 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 13104440135540 its reverse (4553104440131), we get a palindrome (17657544575671).

The spelling of 13104440135540 in words is "thirteen trillion, one hundred four billion, four hundred forty million, one hundred thirty-five thousand, five hundred forty".