266876593201 has 9 divisors (see below), whose sum is σ = 267808159801. Its totient is φ = 265948261204.

The previous prime is 266876593187. The next prime is 266876593211. The reversal of 266876593201 is 102395678662.

The square root of 266876593201 is 516601.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 266876593201 - 2⁵ = 266876593169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266876593211) 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 8 ways as a sum of consecutive naturals, for example, 185459040 + ... + 185460478.

Almost surely, 2^266876593201 is an apocalyptic number.

266876593201 is the 516601-st square number.

266876593201 is the 258301-st centered octagonal number.

It is an amenable number.

266876593201 is a deficient number, since it is larger than the sum of its proper divisors (931566600).

266876593201 is an frugal number, since it uses more digits than its factorization.

266876593201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 266876593201 in words is "two hundred sixty-six billion, eight hundred seventy-six million, five hundred ninety-three thousand, two hundred one".