12188764416 has 72 divisors (see below), whose sum is σ = 32594065504. Its totient is φ = 4043612160.

The previous prime is 12188764369. The next prime is 12188764429. The reversal of 12188764416 is 61446788121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124440 + ... + 199656.

Almost surely, 2^12188764416 is an apocalyptic number.

12188764416 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 12188764416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16297032752).

12188764416 is an abundant number, since it is smaller than the sum of its proper divisors (20405301088).

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

12188764416 is an equidigital number, since it uses as much as digits as its factorization.

12188764416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75447 (or 75433 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The spelling of 12188764416 in words is "twelve billion, one hundred eighty-eight million, seven hundred sixty-four thousand, four hundred sixteen".