1166040165 has 16 divisors (see below), whose sum is σ = 1963857600. Its totient is φ = 589156992.

The previous prime is 1166040157. The next prime is 1166040179. The reversal of 1166040165 is 5610406611.

It is not a de Polignac number, because 1166040165 - 2³ = 1166040157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2045400 + ... + 2045969.

It is an arithmetic number, because the mean of its divisors is an integer number (122741100).

Almost surely, 2^1166040165 is an apocalyptic number.

1166040165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1166040165 is a deficient number, since it is larger than the sum of its proper divisors (797817435).

1166040165 is a wasteful number, since it uses less digits than its factorization.

1166040165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091396.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1166040165 is about 34147.3302763188. The cubic root of 1166040165 is about 1052.5381273061.

Adding to 1166040165 its reverse (5610406611), we get a palindrome (6776446776).

The spelling of 1166040165 in words is "one billion, one hundred sixty-six million, forty thousand, one hundred sixty-five".