266117012 has 24 divisors (see below), whose sum is σ = 532760256. Its totient is φ = 113937408.

The previous prime is 266117011. The next prime is 266117023. The reversal of 266117012 is 210711662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266117011) 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, 28163 + ... + 36405.

It is an arithmetic number, because the mean of its divisors is an integer number (22198344).

Almost surely, 2^266117012 is an apocalyptic number.

It is an amenable number.

266117012 is an abundant number, since it is smaller than the sum of its proper divisors (266643244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266117012 is a wasteful number, since it uses less digits than its factorization.

266117012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9407 (or 9405 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 266117012 is about 16313.0932689052. The cubic root of 266117012 is about 643.2170474193.

Adding to 266117012 its reverse (210711662), we get a palindrome (476828674).

The spelling of 266117012 in words is "two hundred sixty-six million, one hundred seventeen thousand, twelve".