1166143326 has 16 divisors (see below), whose sum is σ = 2358493200. Its totient is φ = 384346688.

The previous prime is 1166143313. The next prime is 1166143333. The reversal of 1166143326 is 6233416611.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1091361 + ... + 1092428.

It is an arithmetic number, because the mean of its divisors is an integer number (147405825).

Almost surely, 2^1166143326 is an apocalyptic number.

1166143326 is an abundant number, since it is smaller than the sum of its proper divisors (1192349874).

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

1166143326 is a wasteful number, since it uses less digits than its factorization.

1166143326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183883.

The product of its digits is 15552, while the sum is 33.

The square root of 1166143326 is about 34148.8407709544. The cubic root of 1166143326 is about 1052.5691661694.

Adding to 1166143326 its reverse (6233416611), we get a palindrome (7399559937).

The spelling of 1166143326 in words is "one billion, one hundred sixty-six million, one hundred forty-three thousand, three hundred twenty-six".