16547221068 has 48 divisors (see below), whose sum is σ = 46448344320. Its totient is φ = 4478946624.

The previous prime is 16547221027. The next prime is 16547221081. The reversal of 16547221068 is 86012274561.

It is a happy number.

16547221068 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 (42).

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, 5182371 + ... + 5185562.

It is an arithmetic number, because the mean of its divisors is an integer number (967673840).

Almost surely, 2^16547221068 is an apocalyptic number.

It is an amenable number.

16547221068 is an abundant number, since it is smaller than the sum of its proper divisors (29901123252).

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

16547221068 is a wasteful number, since it uses less digits than its factorization.

16547221068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10367966 (or 10367964 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 16547221068 in words is "sixteen billion, five hundred forty-seven million, two hundred twenty-one thousand, sixty-eight".