16485664 has 48 divisors (see below), whose sum is σ = 36493632. Its totient is φ = 7273728.

The previous prime is 16485653. The next prime is 16485697. The reversal of 16485664 is 46658461.

It is a happy number.

16485664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8707 + ... + 10429.

It is an arithmetic number, because the mean of its divisors is an integer number (760284).

Almost surely, 2^16485664 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 16485664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18246816).

16485664 is an abundant number, since it is smaller than the sum of its proper divisors (20007968).

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

16485664 is a wasteful number, since it uses less digits than its factorization.

16485664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769 (or 1761 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 16485664 is about 4060.2541792356. The cubic root of 16485664 is about 254.5084160085.

The spelling of 16485664 in words is "sixteen million, four hundred eighty-five thousand, six hundred sixty-four".