12321106164 has 54 divisors (see below), whose sum is σ = 32558075186. Its totient is φ = 3928462560.

The previous prime is 12321106163. The next prime is 12321106183. The reversal of 12321106164 is 46160112321.

It is a happy number.

12321106164 is a `hidden beast` number, since 1 + 2 + 32 + 1 + 10 + 616 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7654850064 + 4666256100 = 87492^2 + 68310^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321106163) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 304447 + ... + 342534.

Almost surely, 2^12321106164 is an apocalyptic number.

It is an amenable number.

12321106164 is an abundant number, since it is smaller than the sum of its proper divisors (20236969022).

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

12321106164 is a wasteful number, since it uses less digits than its factorization.

12321106164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647037 (or 647009 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 12321106164 its reverse (46160112321), we get a palindrome (58481218485).

The spelling of 12321106164 in words is "twelve billion, three hundred twenty-one million, one hundred six thousand, one hundred sixty-four".