1266164226 has 24 divisors (see below), whose sum is σ = 2745042300. Its totient is φ = 421795296.

The previous prime is 1266164203. The next prime is 1266164227. The reversal of 1266164226 is 6224616621.

1266164226 is a `hidden beast` number, since 1 + 2 + 6 + 6 + 1 + 642 + 2 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1109889225 + 156275001 = 33315^2 + 12501^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1266164227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9700 + ... + 51248.

Almost surely, 2^1266164226 is an apocalyptic number.

1266164226 is an abundant number, since it is smaller than the sum of its proper divisors (1478878074).

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

1266164226 is a wasteful number, since it uses less digits than its factorization.

1266164226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43250 (or 43247 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 1266164226 is about 35583.2014579914. The cubic root of 1266164226 is about 1081.8407753692.

The spelling of 1266164226 in words is "one billion, two hundred sixty-six million, one hundred sixty-four thousand, two hundred twenty-six".