366663 has 16 divisors (see below), whose sum is σ = 548352. Its totient is φ = 216000.

The previous prime is 366631. The next prime is 366677.

366663 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 366663 - 2⁵ = 366631 is a prime.

366663 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 366663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1218 + ... + 1488.

It is an arithmetic number, because the mean of its divisors is an integer number (34272).

2³⁶⁶⁶⁶³ is an apocalyptic number.

366663 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

366663 is a deficient number, since it is larger than the sum of its proper divisors (181689).

366663 is a wasteful number, since it uses less digits than its factorization.

366663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its digits is 11664, while the sum is 30.

The square root of 366663 is about 605.5270431616. The cubic root of 366663 is about 71.5740670522.

It can be divided in two parts, 3 and 66663, that added together give a palindrome (66666).

The spelling of 366663 in words is "three hundred sixty-six thousand, six hundred sixty-three".