16616018085 has 16 divisors (see below), whose sum is σ = 26587782144. Its totient is φ = 8861158592.

The previous prime is 16616018077. The next prime is 16616018117. The reversal of 16616018085 is 58081061661.

16616018085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16616018085 - 2³ = 16616018077 is a prime.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 184279 + ... + 259211.

It is an arithmetic number, because the mean of its divisors is an integer number (1661736384).

Almost surely, 2^16616018085 is an apocalyptic number.

16616018085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16616018085 is a deficient number, since it is larger than the sum of its proper divisors (9971764059).

16616018085 is a wasteful number, since it uses less digits than its factorization.

16616018085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89724.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 16616018085 in words is "sixteen billion, six hundred sixteen million, eighteen thousand, eighty-five".