16528664 has 8 divisors (see below), whose sum is σ = 30991260. Its totient is φ = 8264328.

The previous prime is 16528661. The next prime is 16528691. The reversal of 16528664 is 46682561.

16528664 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 (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16528661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033034 + ... + 1033049.

Almost surely, 2^16528664 is an apocalyptic number.

It is an amenable number.

16528664 is a deficient number, since it is larger than the sum of its proper divisors (14462596).

16528664 is a wasteful number, since it uses less digits than its factorization.

16528664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066089 (or 2066085 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 16528664 is about 4065.5459657960. The cubic root of 16528664 is about 254.7295042744.

The spelling of 16528664 in words is "sixteen million, five hundred twenty-eight thousand, six hundred sixty-four".