223266000565 has 32 divisors (see below), whose sum is σ = 284309562240. Its totient is φ = 167839776000.

The previous prime is 223266000557. The next prime is 223266000611. The reversal of 223266000565 is 565000662322.

223266000565 is a nontrivial binomial coefficient, being equal to C(668231, 2).

It is not a de Polignac number, because 223266000565 - 2³ = 223266000557 is a prime.

It is a super-3 number, since 3×223266000565³ (a number of 35 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 31 ways as a sum of consecutive naturals, for example, 43766515 + ... + 43771615.

It is an arithmetic number, because the mean of its divisors is an integer number (8884673820).

Almost surely, 2^223266000565 is an apocalyptic number.

223266000565 is the 668230-th triangular number.

223266000565 is the 222744-th centered nonagonal number.

It is an amenable number.

223266000565 is a deficient number, since it is larger than the sum of its proper divisors (61043561675).

223266000565 is a wasteful number, since it uses less digits than its factorization.

223266000565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8773.

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 223266000565 its reverse (565000662322), we get a palindrome (788266662887).

The spelling of 223266000565 in words is "two hundred twenty-three billion, two hundred sixty-six million, five hundred sixty-five", and thus it is an aban number.