16395664 has 10 divisors (see below), whose sum is σ = 31766630. Its totient is φ = 8197824.

The previous prime is 16395661. The next prime is 16395679. The reversal of 16395664 is 46659361.

16395664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 14379264 + 2016400 = 3792^2 + 1420^2 .

It is not an unprimeable number, because it can be changed into a prime (16395661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512349 + ... + 512380.

It is an arithmetic number, because the mean of its divisors is an integer number (3176663).

Almost surely, 2^16395664 is an apocalyptic number.

It is an amenable number.

16395664 is a deficient number, since it is larger than the sum of its proper divisors (15370966).

16395664 is a wasteful number, since it uses less digits than its factorization.

16395664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024737 (or 1024731 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 16395664 is about 4049.1559614320. The cubic root of 16395664 is about 254.0444256515.

The spelling of 16395664 in words is "sixteen million, three hundred ninety-five thousand, six hundred sixty-four".