366666 has 16 divisors (see below), whose sum is σ = 765504. Its totient is φ = 116864.

The previous prime is 366631. The next prime is 366677. The reversal of 366666 is 666663.

It is a nude number because it is divisible by every one of its digits.

366666 is a modest number, since divided by 666 gives 366 as remainder.

It is a Curzon number.

It is a plaindrome in base 10.

It is an unprimeable number.

366666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1191 + ... + 1466.

It is an arithmetic number, because the mean of its divisors is an integer number (47844).

2³⁶⁶⁶⁶⁶ is an apocalyptic number.

366666 is an abundant number, since it is smaller than the sum of its proper divisors (398838).

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

366666 is a wasteful number, since it uses less digits than its factorization.

366666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685.

The product of its digits is 23328, while the sum is 33.

The square root of 366666 is about 605.5295203374. The cubic root of 366666 is about 71.5742622556.

The spelling of 366666 in words is "three hundred sixty-six thousand, six hundred sixty-six".