1166132101 has 4 divisors (see below), whose sum is σ = 1173559852. Its totient is φ = 1158704352.

The previous prime is 1166132083. The next prime is 1166132159. The reversal of 1166132101 is 1012316611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1012316611 = 197 ⋅5138663.

It can be written as a sum of positive squares in 2 ways, for example, as 281367076 + 884765025 = 16774^2 + 29745^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166132101 - 2⁵ = 1166132069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166130101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3713640 + ... + 3713953.

It is an arithmetic number, because the mean of its divisors is an integer number (293389963).

Almost surely, 2^1166132101 is an apocalyptic number.

It is an amenable number.

1166132101 is a deficient number, since it is larger than the sum of its proper divisors (7427751).

1166132101 is an equidigital number, since it uses as much as digits as its factorization.

1166132101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7427750.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1166132101 is about 34148.6764165172. The cubic root of 1166132101 is about 1052.5657889039.

Adding to 1166132101 its reverse (1012316611), we get a palindrome (2178448712).

The spelling of 1166132101 in words is "one billion, one hundred sixty-six million, one hundred thirty-two thousand, one hundred one".