16528841568 has 72 divisors (see below), whose sum is σ = 47292394968. Its totient is φ = 5475796992.

The previous prime is 16528841561. The next prime is 16528841599. The reversal of 16528841568 is 86514882561.

16528841568 is a `hidden beast` number, since 16 + 5 + 28 + 8 + 41 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16528841561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129105 + ... + 222992.

It is an arithmetic number, because the mean of its divisors is an integer number (656838819).

Almost surely, 2^16528841568 is an apocalyptic number.

16528841568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16528841568 is an abundant number, since it is smaller than the sum of its proper divisors (30763553400).

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

16528841568 is a wasteful number, since it uses less digits than its factorization.

16528841568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352276 (or 352265 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 54.

The spelling of 16528841568 in words is "sixteen billion, five hundred twenty-eight million, eight hundred forty-one thousand, five hundred sixty-eight".