12045889016 has 64 divisors (see below), whose sum is σ = 26532487680. Its totient is φ = 5018785920.

The previous prime is 12045888997. The next prime is 12045889027. The reversal of 12045889016 is 61098854021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4314581 + ... + 4317371.

It is an arithmetic number, because the mean of its divisors is an integer number (414570120).

Almost surely, 2^12045889016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12045889016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13266243840).

12045889016 is an abundant number, since it is smaller than the sum of its proper divisors (14486598664).

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

12045889016 is a wasteful number, since it uses less digits than its factorization.

12045889016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924 (or 4920 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 12045889016 in words is "twelve billion, forty-five million, eight hundred eighty-nine thousand, sixteen".