12006447136 has 24 divisors (see below), whose sum is σ = 24038335440. Its totient is φ = 5901473088.

The previous prime is 12006447133. The next prime is 12006447139. The reversal of 12006447136 is 63174460021.

It is an interprime number because it is at equal distance from previous prime (12006447133) and next prime (12006447139).

It is not an unprimeable number, because it can be changed into a prime (12006447133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3177786 + ... + 3181561.

It is an arithmetic number, because the mean of its divisors is an integer number (1001597310).

Almost surely, 2^12006447136 is an apocalyptic number.

12006447136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12006447136 is an abundant number, since it is smaller than the sum of its proper divisors (12031888304).

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

12006447136 is an equidigital number, since it uses as much as digits as its factorization.

12006447136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6359416 (or 6359408 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 12006447136 in words is "twelve billion, six million, four hundred forty-seven thousand, one hundred thirty-six".