1161512166 has 8 divisors (see below), whose sum is σ = 2323024344. Its totient is φ = 387170720.

The previous prime is 1161512159. The next prime is 1161512179. The reversal of 1161512166 is 6612151611.

It is a sphenic number, since it is the product of 3 distinct primes.

1161512166 is an admirable number.

It is a super-2 number, since 2×1161512166² = 2698221023532023112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96792675 + ... + 96792686.

It is an arithmetic number, because the mean of its divisors is an integer number (290378043).

Almost surely, 2^1161512166 is an apocalyptic number.

1161512166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1161512166 is a wasteful number, since it uses less digits than its factorization.

1161512166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193585366.

The product of its digits is 2160, while the sum is 30.

The square root of 1161512166 is about 34080.9648631021. The cubic root of 1161512166 is about 1051.1739450398.

Adding to 1161512166 its reverse (6612151611), we get a palindrome (7773663777).

The spelling of 1161512166 in words is "one billion, one hundred sixty-one million, five hundred twelve thousand, one hundred sixty-six".