1166351266 has 12 divisors (see below), whose sum is σ = 1852756578. Its totient is φ = 548777472.

The previous prime is 1166351257. The next prime is 1166351267. The reversal of 1166351266 is 6621536611.

It can be written as a sum of positive squares in 3 ways, for example, as 1061391241 + 104960025 = 32579^2 + 10245^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166351267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 196210 + ... + 202066.

Almost surely, 2^1166351266 is an apocalyptic number.

1166351266 is a deficient number, since it is larger than the sum of its proper divisors (686405312).

1166351266 is an frugal number, since it uses more digits than its factorization.

1166351266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11733 (or 5876 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 1166351266 is about 34151.8852481089. The cubic root of 1166351266 is about 1052.6317251532.

Adding to 1166351266 its reverse (6621536611), we get a palindrome (7787887877).

The spelling of 1166351266 in words is "one billion, one hundred sixty-six million, three hundred fifty-one thousand, two hundred sixty-six".