266330213 has 8 divisors (see below), whose sum is σ = 268736736. Its totient is φ = 263934000.

The previous prime is 266330203. The next prime is 266330221. The reversal of 266330213 is 312033662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266330213 - 2⁶ = 266330149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266330203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54938 + ... + 59588.

It is an arithmetic number, because the mean of its divisors is an integer number (33592092).

Almost surely, 2^266330213 is an apocalyptic number.

It is an amenable number.

266330213 is a deficient number, since it is larger than the sum of its proper divisors (2406523).

266330213 is a wasteful number, since it uses less digits than its factorization.

266330213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 266330213 is about 16319.6266195033. The cubic root of 266330213 is about 643.3887737725.

Adding to 266330213 its reverse (312033662), we get a palindrome (578363875).

The spelling of 266330213 in words is "two hundred sixty-six million, three hundred thirty thousand, two hundred thirteen".