12162447180 has 288 divisors, whose sum is σ = 40738850880. Its totient is φ = 2918799360.

The previous prime is 12162447131. The next prime is 12162447203. The reversal of 12162447180 is 8174426121.

It is a happy number.

12162447180 is a `hidden beast` number, since 1 + 21 + 624 + 4 + 7 + 1 + 8 + 0 = 666.

12162447180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 19840554 + ... + 19841166.

Almost surely, 2^12162447180 is an apocalyptic number.

12162447180 is a gapful number since it is divisible by the number (10) 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 12162447180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20369425440).

12162447180 is an abundant number, since it is smaller than the sum of its proper divisors (28576403700).

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

12162447180 is a wasteful number, since it uses less digits than its factorization.

12162447180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 12162447180 in words is "twelve billion, one hundred sixty-two million, four hundred forty-seven thousand, one hundred eighty".