233466561 has 6 divisors (see below), whose sum is σ = 337229490. Its totient is φ = 155644368.

The previous prime is 233466557. The next prime is 233466577. The reversal of 233466561 is 165664332.

233466561 is a `hidden beast` number, since 2 + 3 + 34 + 66 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 222576561 + 10890000 = 14919^2 + 3300^2 .

It is not a de Polignac number, because 233466561 - 2² = 233466557 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (233462561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12970356 + ... + 12970373.

It is an arithmetic number, because the mean of its divisors is an integer number (56204915).

Almost surely, 2^233466561 is an apocalyptic number.

It is an amenable number.

233466561 is a deficient number, since it is larger than the sum of its proper divisors (103762929).

233466561 is a wasteful number, since it uses less digits than its factorization.

233466561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25940735 (or 25940732 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 233466561 is about 15279.6125932564. The cubic root of 233466561 is about 615.7553993522.

The spelling of 233466561 in words is "two hundred thirty-three million, four hundred sixty-six thousand, five hundred sixty-one".