12172116396 has 192 divisors, whose sum is σ = 33564819456. Its totient is φ = 3394828800.

The previous prime is 12172116391. The next prime is 12172116409. The reversal of 12172116396 is 69361127121.

It is not an unprimeable number, because it can be changed into a prime (12172116391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26634600 + ... + 26635056.

It is an arithmetic number, because the mean of its divisors is an integer number (174816768).

Almost surely, 2^12172116396 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 12172116396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16782409728).

12172116396 is an abundant number, since it is smaller than the sum of its proper divisors (21392703060).

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

12172116396 is a wasteful number, since it uses less digits than its factorization.

12172116396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 810 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The spelling of 12172116396 in words is "twelve billion, one hundred seventy-two million, one hundred sixteen thousand, three hundred ninety-six".