1166806959 has 8 divisors (see below), whose sum is σ = 1570015920. Its totient is φ = 770734656.

The previous prime is 1166806957. The next prime is 1166806981. The reversal of 1166806959 is 9596086611.

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

It is not a de Polignac number, because 1166806959 - 2¹ = 1166806957 is a prime.

It is a super-2 number, since 2×1166806959² = 2722876959141655362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166806957) 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, 1783782 + ... + 1784435.

It is an arithmetic number, because the mean of its divisors is an integer number (196251990).

Almost surely, 2^1166806959 is an apocalyptic number.

1166806959 is a deficient number, since it is larger than the sum of its proper divisors (403208961).

1166806959 is a wasteful number, since it uses less digits than its factorization.

1166806959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568329.

The product of its (nonzero) digits is 699840, while the sum is 51.

The square root of 1166806959 is about 34158.5561609387. The cubic root of 1166806959 is about 1052.7687949098.

The spelling of 1166806959 in words is "one billion, one hundred sixty-six million, eight hundred six thousand, nine hundred fifty-nine".