12194697216 has 208 divisors, whose sum is σ = 35422339904. Its totient is φ = 3708813312.

The previous prime is 12194697181. The next prime is 12194697233. The reversal of 12194697216 is 61279649121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (208).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15494775 + ... + 15495561.

Almost surely, 2^12194697216 is an apocalyptic number.

12194697216 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 12194697216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17711169952).

12194697216 is an abundant number, since it is smaller than the sum of its proper divisors (23227642688).

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

12194697216 is an equidigital number, since it uses as much as digits as its factorization.

12194697216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 902 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The spelling of 12194697216 in words is "twelve billion, one hundred ninety-four million, six hundred ninety-seven thousand, two hundred sixteen".