12116510532 has 144 divisors (see below), whose sum is σ = 36326908800. Its totient is φ = 3331722240.

The previous prime is 12116510531. The next prime is 12116510563. The reversal of 12116510532 is 23501561121.

12116510532 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 651 + 0 + 5 + 3 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12116510496 and 12116510505.

It is not an unprimeable number, because it can be changed into a prime (12116510531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2416444 + ... + 2421452.

It is an arithmetic number, because the mean of its divisors is an integer number (252270200).

Almost surely, 2^12116510532 is an apocalyptic number.

12116510532 is a gapful number since it is divisible by the number (12) 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 12116510532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18163454400).

12116510532 is an abundant number, since it is smaller than the sum of its proper divisors (24210398268).

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

12116510532 is a wasteful number, since it uses less digits than its factorization.

12116510532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386 (or 5381 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 12116510532 in words is "twelve billion, one hundred sixteen million, five hundred ten thousand, five hundred thirty-two".