224164665 has 40 divisors (see below), whose sum is σ = 403757640. Its totient is φ = 118983168.

The previous prime is 224164663. The next prime is 224164673. The reversal of 224164665 is 566461422.

224164665 is a `hidden beast` number, since 2 + 2 + 4 + 1 + 646 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 136048896 + 88115769 = 11664^2 + 9387^2 .

It is not a de Polignac number, because 224164665 - 2¹ = 224164663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (224164663) 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 39 ways as a sum of consecutive naturals, for example, 91537 + ... + 93953.

It is an arithmetic number, because the mean of its divisors is an integer number (10093941).

Almost surely, 2^224164665 is an apocalyptic number.

It is an amenable number.

224164665 is a deficient number, since it is larger than the sum of its proper divisors (179592975).

224164665 is a wasteful number, since it uses less digits than its factorization.

224164665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2654 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 224164665 is about 14972.1296080417. The cubic root of 224164665 is about 607.4665733780.

The spelling of 224164665 in words is "two hundred twenty-four million, one hundred sixty-four thousand, six hundred sixty-five".