13531155512 has 64 divisors (see below), whose sum is σ = 29236135680. Its totient is φ = 5751067392.

The previous prime is 13531155511. The next prime is 13531155529. The reversal of 13531155512 is 21555113531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531155511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5137748 + ... + 5140380.

It is an arithmetic number, because the mean of its divisors is an integer number (456814620).

Almost surely, 2^13531155512 is an apocalyptic number.

It is an amenable number.

13531155512 is an abundant number, since it is smaller than the sum of its proper divisors (15704980168).

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

13531155512 is a wasteful number, since it uses less digits than its factorization.

13531155512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372 (or 3368 counting only the distinct ones).

The product of its digits is 11250, while the sum is 32.

The spelling of 13531155512 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-five thousand, five hundred twelve".