13531135536 has 150 divisors (see below), whose sum is σ = 40147988276. Its totient is φ = 4399660800.

The previous prime is 13531135523. The next prime is 13531135537. The reversal of 13531135536 is 63553113531.

13531135536 is a `hidden beast` number, since 1 + 3 + 5 + 3 + 113 + 5 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13531135536.

It is not an unprimeable number, because it can be changed into a prime (13531135537) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2175471 + ... + 2181681.

Almost surely, 2^13531135536 is an apocalyptic number.

13531135536 is a gapful number since it is divisible by the number (16) 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 13531135536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20073994138).

13531135536 is an abundant number, since it is smaller than the sum of its proper divisors (26616852740).

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

13531135536 is an equidigital number, since it uses as much as digits as its factorization.

13531135536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313 (or 6257 counting only the distinct ones).

The product of its digits is 60750, while the sum is 36.

The spelling of 13531135536 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-five thousand, five hundred thirty-six".