1166558195 has 32 divisors (see below), whose sum is σ = 1546110720. Its totient is φ = 837936000.

The previous prime is 1166558153. The next prime is 1166558227. The reversal of 1166558195 is 5918556611.

It is not a de Polignac number, because 1166558195 - 2⁶ = 1166558131 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2530265 + ... + 2530725.

It is an arithmetic number, because the mean of its divisors is an integer number (48315960).

Almost surely, 2^1166558195 is an apocalyptic number.

1166558195 is a deficient number, since it is larger than the sum of its proper divisors (379552525).

1166558195 is a wasteful number, since it uses less digits than its factorization.

1166558195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947.

The product of its digits is 324000, while the sum is 47.

The square root of 1166558195 is about 34154.9146536776. The cubic root of 1166558195 is about 1052.6939725957.

The spelling of 1166558195 in words is "one billion, one hundred sixty-six million, five hundred fifty-eight thousand, one hundred ninety-five".