16454664 has 80 divisors (see below), whose sum is σ = 46899600. Its totient is φ = 5388768.

The previous prime is 16454663. The next prime is 16454701. The reversal of 16454664 is 46645461.

16454664 is a `hidden beast` number, since 1 + 645 + 4 + 6 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16454663) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43227 + ... + 43605.

It is an arithmetic number, because the mean of its divisors is an integer number (586245).

Almost surely, 2^16454664 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 16454664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23449800).

16454664 is an abundant number, since it is smaller than the sum of its proper divisors (30444936).

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

16454664 is a wasteful number, since it uses less digits than its factorization.

16454664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 451 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 16454664 is about 4056.4348879281. The cubic root of 16454664 is about 254.3487881963.

The spelling of 16454664 in words is "sixteen million, four hundred fifty-four thousand, six hundred sixty-four".