16641271 has 8 divisors (see below), whose sum is σ = 16930880. Its totient is φ = 16353792.

The previous prime is 16641269. The next prime is 16641281. The reversal of 16641271 is 17214661.

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 16641271 - 2¹ = 16641269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16641211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24391 + ... + 25063.

It is an arithmetic number, because the mean of its divisors is an integer number (2116360).

Almost surely, 2^16641271 is an apocalyptic number.

16641271 is a deficient number, since it is larger than the sum of its proper divisors (289609).

16641271 is an equidigital number, since it uses as much as digits as its factorization.

16641271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its digits is 2016, while the sum is 28.

The square root of 16641271 is about 4079.3713976543. The cubic root of 16641271 is about 255.3066719195.

The spelling of 16641271 in words is "sixteen million, six hundred forty-one thousand, two hundred seventy-one".