18069428016 has 120 divisors (see below), whose sum is σ = 51287811120. Its totient is φ = 5937881088.

The previous prime is 18069427997. The next prime is 18069428017. The reversal of 18069428016 is 61082496081.

It is not an unprimeable number, because it can be changed into a prime (18069428017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6799360 + ... + 6802016.

It is an arithmetic number, because the mean of its divisors is an integer number (427398426).

Almost surely, 2^18069428016 is an apocalyptic number.

18069428016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18069428016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25643905560).

18069428016 is an abundant number, since it is smaller than the sum of its proper divisors (33218383104).

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

18069428016 is a wasteful number, since it uses less digits than its factorization.

18069428016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323 (or 3314 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 18069428016 in words is "eighteen billion, sixty-nine million, four hundred twenty-eight thousand, sixteen".