16699055616 has 240 divisors, whose sum is σ = 52488493200. Its totient is φ = 5090770944.

The previous prime is 16699055563. The next prime is 16699055621. The reversal of 16699055616 is 61655099661.

16699055616 is a `hidden beast` number, since 16 + 6 + 9 + 9 + 0 + 5 + 5 + 616 = 666.

16699055616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16699055616² (a number of 21 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 2535720 + ... + 2542296.

It is an arithmetic number, because the mean of its divisors is an integer number (218702055).

Almost surely, 2^16699055616 is an apocalyptic number.

16699055616 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 16699055616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26244246600).

16699055616 is an abundant number, since it is smaller than the sum of its proper divisors (35789437584).

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

16699055616 is a wasteful number, since it uses less digits than its factorization.

16699055616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649 (or 6630 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 16699055616 in words is "sixteen billion, six hundred ninety-nine million, fifty-five thousand, six hundred sixteen".