16560255600 has 1260 divisors, whose sum is σ = 74240363640. Its totient is φ = 3527193600.

The previous prime is 16560255587. The next prime is 16560255601. The reversal of 16560255600 is 655206561.

It is a happy number.

16560255600 is a `hidden beast` number, since 16 + 5 + 60 + 25 + 560 + 0 = 666.

16560255600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1260).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16560255601) by changing a digit.

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 251 ways as a sum of consecutive naturals, for example, 271479570 + ... + 271479630.

Almost surely, 2^16560255600 is an apocalyptic number.

16560255600 is a gapful number since it is divisible by the number (10) 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 16560255600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37120181820).

16560255600 is an abundant number, since it is smaller than the sum of its proper divisors (57680108040).

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

16560255600 is a wasteful number, since it uses less digits than its factorization.

16560255600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 16560255600 in words is "sixteen billion, five hundred sixty million, two hundred fifty-five thousand, six hundred".