441163566 has 96 divisors (see below), whose sum is σ = 1040195520. Its totient is φ = 134627328.

The previous prime is 441163561. The next prime is 441163589. The reversal of 441163566 is 665361144.

It is a happy number.

441163566 is a `hidden beast` number, since 4 + 4 + 11 + 635 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 441163566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441163561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2641615 + ... + 2641781.

It is an arithmetic number, because the mean of its divisors is an integer number (10835370).

Almost surely, 2^441163566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 441163566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520097760).

441163566 is an abundant number, since it is smaller than the sum of its proper divisors (599031954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

441163566 is a wasteful number, since it uses less digits than its factorization.

441163566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 375 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 441163566 is about 21003.8940675295. The cubic root of 441163566 is about 761.2603544743.

The spelling of 441163566 in words is "four hundred forty-one million, one hundred sixty-three thousand, five hundred sixty-six".