1166055159 has 8 divisors (see below), whose sum is σ = 1555990000. Its totient is φ = 776745216.

The previous prime is 1166055157. The next prime is 1166055161. The reversal of 1166055159 is 9515506611.

It is an interprime number because it is at equal distance from previous prime (1166055157) and next prime (1166055161).

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

It is not a de Polignac number, because 1166055159 - 2¹ = 1166055157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166055157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151852 + ... + 159345.

It is an arithmetic number, because the mean of its divisors is an integer number (194498750).

Almost surely, 2^1166055159 is an apocalyptic number.

1166055159 is a deficient number, since it is larger than the sum of its proper divisors (389934841).

1166055159 is a wasteful number, since it uses less digits than its factorization.

1166055159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312449.

The product of its (nonzero) digits is 40500, while the sum is 39.

The square root of 1166055159 is about 34147.5498242553. The cubic root of 1166055159 is about 1052.5426387828.

The spelling of 1166055159 in words is "one billion, one hundred sixty-six million, fifty-five thousand, one hundred fifty-nine".