1166558226 has 16 divisors (see below), whose sum is σ = 2333492928. Its totient is φ = 388790000.

The previous prime is 1166558153. The next prime is 1166558227. The reversal of 1166558226 is 6228556611.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1166558227) 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, 39571 + ... + 62441.

It is an arithmetic number, because the mean of its divisors is an integer number (145843308).

Almost surely, 2^1166558226 is an apocalyptic number.

1166558226 is an abundant number, since it is smaller than the sum of its proper divisors (1166934702).

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

1166558226 is a wasteful number, since it uses less digits than its factorization.

1166558226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31377.

The product of its digits is 172800, while the sum is 42.

The square root of 1166558226 is about 34154.9151074922. The cubic root of 1166558226 is about 1052.6939819204.

The spelling of 1166558226 in words is "one billion, one hundred sixty-six million, five hundred fifty-eight thousand, two hundred twenty-six".