266872383 has 12 divisors (see below), whose sum is σ = 385791328. Its totient is φ = 177772320.

The previous prime is 266872369. The next prime is 266872387. The reversal of 266872383 is 383278662.

266872383 is a `hidden beast` number, since 266 + 8 + 7 + 2 + 383 = 666.

It is not a de Polignac number, because 266872383 - 2⁸ = 266872127 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 (266872387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 666 + ... + 23112.

Almost surely, 2^266872383 is an apocalyptic number.

266872383 is a deficient number, since it is larger than the sum of its proper divisors (118918945).

266872383 is a wasteful number, since it uses less digits than its factorization.

266872383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23774 (or 23771 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 266872383 is about 16336.2291548570. The cubic root of 266872383 is about 643.8250613075.

The spelling of 266872383 in words is "two hundred sixty-six million, eight hundred seventy-two thousand, three hundred eighty-three".