1166611228 has 6 divisors (see below), whose sum is σ = 2041569656. Its totient is φ = 583305612.

The previous prime is 1166611223. The next prime is 1166611279. The reversal of 1166611228 is 8221166611.

It is a junction number, because it is equal to n+sod(n) for n = 1166611193 and 1166611202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166611223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145826400 + ... + 145826407.

Almost surely, 2^1166611228 is an apocalyptic number.

It is an amenable number.

1166611228 is a deficient number, since it is larger than the sum of its proper divisors (874958428).

1166611228 is a wasteful number, since it uses less digits than its factorization.

1166611228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291652811 (or 291652809 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 1166611228 is about 34155.6910045749. The cubic root of 1166611228 is about 1052.7099245570.

Adding to 1166611228 its reverse (8221166611), we get a palindrome (9387777839).

The spelling of 1166611228 in words is "one billion, one hundred sixty-six million, six hundred eleven thousand, two hundred twenty-eight".