12150515636 has 48 divisors (see below), whose sum is σ = 24819903360. Its totient is φ = 5096657280.

The previous prime is 12150515617. The next prime is 12150515639. The reversal of 12150515636 is 63651505121.

12150515636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12150515596 and 12150515605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150515639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612026 + ... + 631566.

It is an arithmetic number, because the mean of its divisors is an integer number (517081320).

Almost surely, 2^12150515636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12150515636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12409951680).

12150515636 is an abundant number, since it is smaller than the sum of its proper divisors (12669387724).

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

12150515636 is a wasteful number, since it uses less digits than its factorization.

12150515636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20024 (or 20022 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 12150515636 in words is "twelve billion, one hundred fifty million, five hundred fifteen thousand, six hundred thirty-six".