16226565 has 8 divisors (see below), whose sum is σ = 25962528. Its totient is φ = 8654160.

The previous prime is 16226563. The next prime is 16226597. The reversal of 16226565 is 56562261.

It is a happy number.

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

It is not a de Polignac number, because 16226565 - 2¹ = 16226563 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16226563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540871 + ... + 540900.

It is an arithmetic number, because the mean of its divisors is an integer number (3245316).

Almost surely, 2^16226565 is an apocalyptic number.

16226565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16226565 is a deficient number, since it is larger than the sum of its proper divisors (9735963).

16226565 is a wasteful number, since it uses less digits than its factorization.

16226565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081779.

The product of its digits is 21600, while the sum is 33.

The square root of 16226565 is about 4028.2210713912. The cubic root of 16226565 is about 253.1680313978.

The spelling of 16226565 in words is "sixteen million, two hundred twenty-six thousand, five hundred sixty-five".