12016885872 has 20 divisors (see below), whose sum is σ = 31043621960. Its totient is φ = 4005628608.

The previous prime is 12016885847. The next prime is 12016885879. The reversal of 12016885872 is 27858861021.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 250351789 = 12016885872 / (1 + 2 + 0 + 1 + 6 + 8 + 8 + 5 + 8 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12016885879) 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, 125175847 + ... + 125175942.

It is an arithmetic number, because the mean of its divisors is an integer number (1552181098).

Almost surely, 2^12016885872 is an apocalyptic number.

12016885872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12016885872 is an abundant number, since it is smaller than the sum of its proper divisors (19026736088).

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

12016885872 is a wasteful number, since it uses less digits than its factorization.

12016885872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250351800 (or 250351794 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 12016885872 in words is "twelve billion, sixteen million, eight hundred eighty-five thousand, eight hundred seventy-two".