13105325550520 has 96 divisors (see below), whose sum is σ = 34640799914880. Its totient is φ = 4448766739200.

The previous prime is 13105325550491. The next prime is 13105325550523. The reversal of 13105325550520 is 2505552350131.

It is a super-2 number, since 2×13105325550520² (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 13105325550520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105325550523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32902984 + ... + 33298903.

It is an arithmetic number, because the mean of its divisors is an integer number (360841665780).

Almost surely, 2^{13105325550520} is an apocalyptic number.

13105325550520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13105325550520 is an abundant number, since it is smaller than the sum of its proper divisors (21535474364360).

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

13105325550520 is a wasteful number, since it uses less digits than its factorization.

13105325550520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66202013 (or 66202002 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 13105325550520 in words is "thirteen trillion, one hundred five billion, three hundred twenty-five million, five hundred fifty thousand, five hundred twenty".