1166650 has 12 divisors (see below), whose sum is σ = 2170062. Its totient is φ = 466640.

The previous prime is 1166639. The next prime is 1166663. The reversal of 1166650 is 566611.

1166650 = T₁₀₀ + T₁₀₁ + ... + T₁₉₉.

It can be written as a sum of positive squares in 3 ways, for example, as 531441 + 635209 = 729^2 + 797^2 .

It is a super-2 number, since 2×1166650² = 2722144445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11617 + ... + 11716.

2^1166650 is an apocalyptic number.

1166650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166650 is a deficient number, since it is larger than the sum of its proper divisors (1003412).

1166650 is a wasteful number, since it uses less digits than its factorization.

1166650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23345 (or 23340 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1166650 is about 1080.1157345396. The cubic root of 1166650 is about 105.2721586602.

The spelling of 1166650 in words is "one million, one hundred sixty-six thousand, six hundred fifty".