12195818496 has 396 divisors, whose sum is σ = 39540752680. Its totient is φ = 3609722880.

The previous prime is 12195818491. The next prime is 12195818567. The reversal of 12195818496 is 69481859121.

12195818496 is a `hidden beast` number, since 1 + 2 + 19 + 581 + 8 + 49 + 6 = 666.

Its product of digits (1244160) is a multiple of the sum of its prime factors (320).

It is not an unprimeable number, because it can be changed into a prime (12195818491) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 50604936 + ... + 50605176.

Almost surely, 2^12195818496 is an apocalyptic number.

12195818496 is a gapful number since it is divisible by the number (16) 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 12195818496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19770376340).

12195818496 is an abundant number, since it is smaller than the sum of its proper divisors (27344934184).

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

12195818496 is a wasteful number, since it uses less digits than its factorization.

12195818496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 282 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The spelling of 12195818496 in words is "twelve billion, one hundred ninety-five million, eight hundred eighteen thousand, four hundred ninety-six".