12327323166 has 96 divisors (see below), whose sum is σ = 28113067008. Its totient is φ = 3898920960.

The previous prime is 12327323149. The next prime is 12327323167. The reversal of 12327323166 is 66132372321.

12327323166 is a `hidden beast` number, since 1 + 2 + 327 + 323 + 1 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12327323166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12327323167) 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, 9607561 + ... + 9608843.

It is an arithmetic number, because the mean of its divisors is an integer number (292844448).

Almost surely, 2^12327323166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12327323166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14056533504).

12327323166 is an abundant number, since it is smaller than the sum of its proper divisors (15785743842).

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

12327323166 is a wasteful number, since it uses less digits than its factorization.

12327323166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1643 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

Adding to 12327323166 its reverse (66132372321), we get a palindrome (78459695487).

The spelling of 12327323166 in words is "twelve billion, three hundred twenty-seven million, three hundred twenty-three thousand, one hundred sixty-six".