266741194 has 4 divisors (see below), whose sum is σ = 400111794. Its totient is φ = 133370596.

The previous prime is 266741191. The next prime is 266741201. The reversal of 266741194 is 491147662.

266741194 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 491147662 = 2 ⋅245573831.

It can be written as a sum of positive squares in only one way, i.e., 160959969 + 105781225 = 12687^2 + 10285^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (266741191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66685297 + ... + 66685300.

Almost surely, 2^266741194 is an apocalyptic number.

266741194 is a deficient number, since it is larger than the sum of its proper divisors (133370600).

266741194 is a wasteful number, since it uses less digits than its factorization.

266741194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133370599.

The product of its digits is 72576, while the sum is 40.

The square root of 266741194 is about 16332.2133833721. The cubic root of 266741194 is about 643.7195469429.

The spelling of 266741194 in words is "two hundred sixty-six million, seven hundred forty-one thousand, one hundred ninety-four".