1168391155 has 8 divisors (see below), whose sum is σ = 1402263792. Its totient is φ = 934583328.

The previous prime is 1168391153. The next prime is 1168391167. The reversal of 1168391155 is 5511938611.

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

It is a cyclic number.

It is not a de Polignac number, because 1168391155 - 2¹ = 1168391153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168391153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43404 + ... + 64966.

It is an arithmetic number, because the mean of its divisors is an integer number (175282974).

Almost surely, 2^1168391155 is an apocalyptic number.

1168391155 is a deficient number, since it is larger than the sum of its proper divisors (233872637).

1168391155 is a wasteful number, since it uses less digits than its factorization.

1168391155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32405.

The product of its digits is 32400, while the sum is 40.

The square root of 1168391155 is about 34181.7371559726. The cubic root of 1168391155 is about 1053.2450341803.

The spelling of 1168391155 in words is "one billion, one hundred sixty-eight million, three hundred ninety-one thousand, one hundred fifty-five".