16864555050 has 384 divisors, whose sum is σ = 56792793600. Its totient is φ = 3592028160.

The previous prime is 16864555031. The next prime is 16864555061. The reversal of 16864555050 is 5055546861.

16864555050 is a `hidden beast` number, since 1 + 6 + 8 + 6 + 45 + 550 + 50 = 666.

16864555050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 16864554987 and 16864555005.

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 191 ways as a sum of consecutive naturals, for example, 18152986 + ... + 18153914.

It is an arithmetic number, because the mean of its divisors is an integer number (147897900).

Almost surely, 2^16864555050 is an apocalyptic number.

16864555050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16864555050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28396396800).

16864555050 is an abundant number, since it is smaller than the sum of its proper divisors (39928238550).

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

16864555050 is a wasteful number, since it uses less digits than its factorization.

16864555050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The spelling of 16864555050 in words is "sixteen billion, eight hundred sixty-four million, five hundred fifty-five thousand, fifty".