16527566328 has 384 divisors, whose sum is σ = 57708806400. Its totient is φ = 3885428736.

The previous prime is 16527566317. The next prime is 16527566333. The reversal of 16527566328 is 82366572561.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4936351 + ... + 4939697.

It is an arithmetic number, because the mean of its divisors is an integer number (150283350).

Almost surely, 2^16527566328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16527566328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28854403200).

16527566328 is an abundant number, since it is smaller than the sum of its proper divisors (41181240072).

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

16527566328 is a wasteful number, since it uses less digits than its factorization.

16527566328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3419 (or 3408 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 16527566328 in words is "sixteen billion, five hundred twenty-seven million, five hundred sixty-six thousand, three hundred twenty-eight".