12271153968 has 60 divisors (see below), whose sum is σ = 35614132008. Its totient is φ = 4090383360.

The previous prime is 12271153919. The next prime is 12271153991. The reversal of 12271153968 is 86935117221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1574193 + ... + 1581968.

Almost surely, 2^12271153968 is an apocalyptic number.

12271153968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12271153968 is an abundant number, since it is smaller than the sum of its proper divisors (23342978040).

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

12271153968 is an equidigital number, since it uses as much as digits as its factorization.

12271153968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156184 (or 3156166 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 12271153968 in words is "twelve billion, two hundred seventy-one million, one hundred fifty-three thousand, nine hundred sixty-eight".