266145196 has 12 divisors (see below), whose sum is σ = 473389840. Its totient is φ = 130890960.

The previous prime is 266145193. The next prime is 266145197. The reversal of 266145196 is 691541662.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (266145193) 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 3 ways as a sum of consecutive naturals, for example, 545136 + ... + 545623.

Almost surely, 2^266145196 is an apocalyptic number.

It is an amenable number.

266145196 is a deficient number, since it is larger than the sum of its proper divisors (207244644).

266145196 is a wasteful number, since it uses less digits than its factorization.

266145196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090824 (or 1090822 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 266145196 is about 16313.9570920117. The cubic root of 266145196 is about 643.2397539588.

The spelling of 266145196 in words is "two hundred sixty-six million, one hundred forty-five thousand, one hundred ninety-six".