1166372166 has 16 divisors (see below), whose sum is σ = 2376759024. Its totient is φ = 381454944.

The previous prime is 1166372153. The next prime is 1166372197. The reversal of 1166372166 is 6612736611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833601 + ... + 1834236.

It is an arithmetic number, because the mean of its divisors is an integer number (148547439).

Almost surely, 2^1166372166 is an apocalyptic number.

1166372166 is an abundant number, since it is smaller than the sum of its proper divisors (1210386858).

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

1166372166 is a wasteful number, since it uses less digits than its factorization.

1166372166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667895.

The product of its digits is 54432, while the sum is 39.

The square root of 1166372166 is about 34152.1912327745. The cubic root of 1166372166 is about 1052.6380125306.

The spelling of 1166372166 in words is "one billion, one hundred sixty-six million, three hundred seventy-two thousand, one hundred sixty-six".