1166161101 has 16 divisors (see below), whose sum is σ = 1777728000. Its totient is φ = 666107568.

The previous prime is 1166161093. The next prime is 1166161109. The reversal of 1166161101 is 1011616611.

It is an interprime number because it is at equal distance from previous prime (1166161093) and next prime (1166161109).

It is not a de Polignac number, because 1166161101 - 2³ = 1166161093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166161109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49350 + ... + 69048.

It is an arithmetic number, because the mean of its divisors is an integer number (111108000).

Almost surely, 2^1166161101 is an apocalyptic number.

It is an amenable number.

1166161101 is a deficient number, since it is larger than the sum of its proper divisors (611566899).

1166161101 is a wasteful number, since it uses less digits than its factorization.

1166161101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22528.

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 1166161101 is about 34149.1010276991. The cubic root of 1166161101 is about 1052.5745140889.

Adding to 1166161101 its reverse (1011616611), we get a palindrome (2177777712).

The spelling of 1166161101 in words is "one billion, one hundred sixty-six million, one hundred sixty-one thousand, one hundred one".