12167532872 has 32 divisors (see below), whose sum is σ = 25296148800. Its totient is φ = 5440027200.

The previous prime is 12167532863. The next prime is 12167532901. The reversal of 12167532872 is 27823576121.

12167532872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127972 + ... + 1138707.

It is an arithmetic number, because the mean of its divisors is an integer number (790504650).

Almost surely, 2^12167532872 is an apocalyptic number.

It is an amenable number.

12167532872 is an abundant number, since it is smaller than the sum of its proper divisors (13128615928).

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

12167532872 is a wasteful number, since it uses less digits than its factorization.

12167532872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266757 (or 2266753 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The spelling of 12167532872 in words is "twelve billion, one hundred sixty-seven million, five hundred thirty-two thousand, eight hundred seventy-two".