12143652636 has 96 divisors (see below), whose sum is σ = 31469340672. Its totient is φ = 3627832320.

The previous prime is 12143652629. The next prime is 12143652637. The reversal of 12143652636 is 63625634121.

It is a junction number, because it is equal to n+sod(n) for n = 12143652594 and 12143652603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143652637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337641 + ... + 371871.

It is an arithmetic number, because the mean of its divisors is an integer number (327805632).

Almost surely, 2^12143652636 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 12143652636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15734670336).

12143652636 is an abundant number, since it is smaller than the sum of its proper divisors (19325688036).

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

12143652636 is a wasteful number, since it uses less digits than its factorization.

12143652636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34339 (or 34337 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The spelling of 12143652636 in words is "twelve billion, one hundred forty-three million, six hundred fifty-two thousand, six hundred thirty-six".