1166658 has 8 divisors (see below), whose sum is σ = 2333328. Its totient is φ = 388884.

The previous prime is 1166639. The next prime is 1166663. The reversal of 1166658 is 8566611.

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

1166658 is an admirable number.

It is a super-2 number, since 2×1166658² = 2722181777928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97216 + ... + 97227.

It is an arithmetic number, because the mean of its divisors is an integer number (291666).

2^1166658 is an apocalyptic number.

1166658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166658 is a wasteful number, since it uses less digits than its factorization.

1166658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194448.

The product of its digits is 8640, while the sum is 33.

The square root of 1166658 is about 1080.1194378401. The cubic root of 1166658 is about 105.2723992851.

The spelling of 1166658 in words is "one million, one hundred sixty-six thousand, six hundred fifty-eight".