223132566 has 16 divisors (see below), whose sum is σ = 449262000. Its totient is φ = 73878048.

The previous prime is 223132519. The next prime is 223132643. The reversal of 223132566 is 665231322.

223132566 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223132566³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123901 + ... + 125688.

It is an arithmetic number, because the mean of its divisors is an integer number (28078875).

Almost surely, 2^223132566 is an apocalyptic number.

223132566 is an abundant number, since it is smaller than the sum of its proper divisors (226129434).

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

223132566 is a wasteful number, since it uses less digits than its factorization.

223132566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249743.

The product of its digits is 12960, while the sum is 30.

The square root of 223132566 is about 14937.6225015897. The cubic root of 223132566 is about 606.5328396323.

Adding to 223132566 its reverse (665231322), we get a palindrome (888363888).

The spelling of 223132566 in words is "two hundred twenty-three million, one hundred thirty-two thousand, five hundred sixty-six".