1166666 has 8 divisors (see below), whose sum is σ = 1779840. Its totient is φ = 573388.

The previous prime is 1166663. The next prime is 1166677. The reversal of 1166666 is 6666611.

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

It is a super-2 number, since 2×1166666² = 2722219111112, which contains 22 as substring.

1166666 is a modest number, since divided by 6666 gives 116 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4826 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (222480).

2^1166666 is an apocalyptic number.

1166666 is a deficient number, since it is larger than the sum of its proper divisors (613174).

1166666 is an equidigital number, since it uses as much as digits as its factorization.

1166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9948.

The product of its digits is 7776, while the sum is 32.

The square root of 1166666 is about 1080.1231411279. The cubic root of 1166666 is about 105.2726399090.

Subtracting 1166666 from its reverse (6666611), we obtain a palindrome (5499945).

It can be divided in two parts, 116666 and 6, that multiplied together give a palindrome (699996).

The spelling of 1166666 in words is "one million, one hundred sixty-six thousand, six hundred sixty-six".