226645566 has 64 divisors (see below), whose sum is σ = 548536320. Its totient is φ = 60985440.

The previous prime is 226645541. The next prime is 226645567. The reversal of 226645566 is 665546622.

226645566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226645567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151675 + ... + 153161.

It is an arithmetic number, because the mean of its divisors is an integer number (8570880).

Almost surely, 2^226645566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226645566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274268160).

226645566 is an abundant number, since it is smaller than the sum of its proper divisors (321890754).

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

226645566 is a wasteful number, since it uses less digits than its factorization.

226645566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709.

The product of its digits is 518400, while the sum is 42.

The square root of 226645566 is about 15054.7522729535. The cubic root of 226645566 is about 609.6993645335.

The spelling of 226645566 in words is "two hundred twenty-six million, six hundred forty-five thousand, five hundred sixty-six".