16622065 has 8 divisors (see below), whose sum is σ = 20485800. Its totient is φ = 12938112.

The previous prime is 16622051. The next prime is 16622071. The reversal of 16622065 is 56022661.

It can be written as a sum of positive squares in 4 ways, for example, as 4946176 + 11675889 = 2224^2 + 3417^2 .

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 16622065 - 2⁵ = 16622033 is a prime.

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, 44740 + ... + 45109.

It is an arithmetic number, because the mean of its divisors is an integer number (2560725).

Almost surely, 2^16622065 is an apocalyptic number.

It is an amenable number.

16622065 is a deficient number, since it is larger than the sum of its proper divisors (3863735).

16622065 is an equidigital number, since it uses as much as digits as its factorization.

16622065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89891.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 16622065 is about 4077.0166788965. The cubic root of 16622065 is about 255.2084160525.

The spelling of 16622065 in words is "sixteen million, six hundred twenty-two thousand, sixty-five".