226401165 has 24 divisors (see below), whose sum is σ = 392884128. Its totient is φ = 120607200.

The previous prime is 226401163. The next prime is 226401211. The reversal of 226401165 is 561104622.

226401165 is a `hidden beast` number, since 2 + 2 + 640 + 1 + 16 + 5 = 666.

It is not a de Polignac number, because 226401165 - 2¹ = 226401163 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226401163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44902 + ... + 49688.

It is an arithmetic number, because the mean of its divisors is an integer number (16370172).

Almost surely, 2^226401165 is an apocalyptic number.

It is an amenable number.

226401165 is a deficient number, since it is larger than the sum of its proper divisors (166482963).

226401165 is a wasteful number, since it uses less digits than its factorization.

226401165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5849 (or 5846 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 226401165 is about 15046.6330120728. The cubic root of 226401165 is about 609.4801312894.

Adding to 226401165 its reverse (561104622), we get a palindrome (787505787).

The spelling of 226401165 in words is "two hundred twenty-six million, four hundred one thousand, one hundred sixty-five".