16641065 has 16 divisors (see below), whose sum is σ = 22982400. Its totient is φ = 11330880.

The previous prime is 16641059. The next prime is 16641067. The reversal of 16641065 is 56014661.

It is not a de Polignac number, because 16641065 - 2¹² = 16636969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16641067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3620 + ... + 6810.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^16641065 is an apocalyptic number.

It is an amenable number.

16641065 is a deficient number, since it is larger than the sum of its proper divisors (6341335).

16641065 is a wasteful number, since it uses less digits than its factorization.

16641065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 16641065 is about 4079.3461485880. The cubic root of 16641065 is about 255.3056184464.

The spelling of 16641065 in words is "sixteen million, six hundred forty-one thousand, sixty-five".