226566216 has 96 divisors (see below), whose sum is σ = 626895360. Its totient is φ = 73910016.

The previous prime is 226566211. The next prime is 226566239. The reversal of 226566216 is 612665622.

226566216 is a `hidden beast` number, since 2 + 26 + 5 + 6 + 621 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (226566211) 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, 1015881 + ... + 1016103.

It is an arithmetic number, because the mean of its divisors is an integer number (6530160).

Almost surely, 2^226566216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226566216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313447680).

226566216 is an abundant number, since it is smaller than the sum of its proper divisors (400329144).

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

226566216 is a wasteful number, since it uses less digits than its factorization.

226566216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 468 counting only the distinct ones).

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

The square root of 226566216 is about 15052.1166617855. The cubic root of 226566216 is about 609.6282030682.

The spelling of 226566216 in words is "two hundred twenty-six million, five hundred sixty-six thousand, two hundred sixteen".