16384565 has 8 divisors (see below), whose sum is σ = 20339640. Its totient is φ = 12655552.

The previous prime is 16384559. The next prime is 16384607. The reversal of 16384565 is 56548361.

It can be written as a sum of positive squares in 4 ways, for example, as 2553604 + 13830961 = 1598^2 + 3719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16384565 - 2⁸ = 16384309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56354 + ... + 56643.

It is an arithmetic number, because the mean of its divisors is an integer number (2542455).

Almost surely, 2^16384565 is an apocalyptic number.

It is an amenable number.

16384565 is a deficient number, since it is larger than the sum of its proper divisors (3955075).

16384565 is a wasteful number, since it uses less digits than its factorization.

16384565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113031.

The product of its digits is 86400, while the sum is 38.

The square root of 16384565 is about 4047.7851968700. The cubic root of 16384565 is about 253.9870878178.

The spelling of 16384565 in words is "sixteen million, three hundred eighty-four thousand, five hundred sixty-five".