13540225244020 has 24 divisors (see below), whose sum is σ = 28439859571200. Its totient is φ = 5415064086432.

The previous prime is 13540225244003. The next prime is 13540225244027. The reversal of 13540225244020 is 2044252204531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13540225244027) 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 7 ways as a sum of consecutive naturals, for example, 64017480 + ... + 64228639.

It is an arithmetic number, because the mean of its divisors is an integer number (1184994148800).

Almost surely, 2^{13540225244020} is an apocalyptic number.

13540225244020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13540225244020 is an abundant number, since it is smaller than the sum of its proper divisors (14899634327180).

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

13540225244020 is a wasteful number, since it uses less digits than its factorization.

13540225244020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128251407 (or 128251405 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 13540225244020 its reverse (2044252204531), we get a palindrome (15584477448551).

The spelling of 13540225244020 in words is "thirteen trillion, five hundred forty billion, two hundred twenty-five million, two hundred forty-four thousand, twenty".