1166177227 has 16 divisors (see below), whose sum is σ = 1211857920. Its totient is φ = 1121428800.

The previous prime is 1166177219. The next prime is 1166177239. The reversal of 1166177227 is 7227716611.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1166177227 - 2³ = 1166177219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166177227.

It is not an unprimeable number, because it can be changed into a prime (1166177267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143924 + ... + 1144942.

It is an arithmetic number, because the mean of its divisors is an integer number (75741120).

Almost surely, 2^1166177227 is an apocalyptic number.

1166177227 is a deficient number, since it is larger than the sum of its proper divisors (45680693).

1166177227 is a wasteful number, since it uses less digits than its factorization.

1166177227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434.

The product of its digits is 49392, while the sum is 40.

The square root of 1166177227 is about 34149.3371385156. The cubic root of 1166177227 is about 1052.5793658309.

It can be divided in two parts, 11661 and 77227, that added together give a palindrome (88888).

The spelling of 1166177227 in words is "one billion, one hundred sixty-six million, one hundred seventy-seven thousand, two hundred twenty-seven".