16066616616 has 96 divisors (see below), whose sum is σ = 44211704160. Its totient is φ = 5269815936.

The previous prime is 16066616609. The next prime is 16066616641. The reversal of 16066616616 is 61661666061.

It is a super-3 number, since 3×16066616616³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8310786 + ... + 8312718.

It is an arithmetic number, because the mean of its divisors is an integer number (460538585).

Almost surely, 2^16066616616 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 16066616616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22105852080).

16066616616 is an abundant number, since it is smaller than the sum of its proper divisors (28145087544).

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

16066616616 is a wasteful number, since it uses less digits than its factorization.

16066616616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735 (or 3728 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 16066616616 in words is "sixteen billion, sixty-six million, six hundred sixteen thousand, six hundred sixteen".