13415134531440 has 80 divisors (see below), whose sum is σ = 41611835556000. Its totient is φ = 3575225680896.

The previous prime is 13415134531433. The next prime is 13415134531471. The reversal of 13415134531440 is 4413543151431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16344915 + ... + 17146034.

It is an arithmetic number, because the mean of its divisors is an integer number (520147944450).

Almost surely, 2^{13415134531440} is an apocalyptic number.

13415134531440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13415134531440 is an abundant number, since it is smaller than the sum of its proper divisors (28196701024560).

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

13415134531440 is a wasteful number, since it uses less digits than its factorization.

13415134531440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33492634 (or 33492628 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 13415134531440 its reverse (4413543151431), we get a palindrome (17828677682871).

The spelling of 13415134531440 in words is "thirteen trillion, four hundred fifteen billion, one hundred thirty-four million, five hundred thirty-one thousand, four hundred forty".