366606663 has 8 divisors (see below), whose sum is σ = 490286976. Its totient is φ = 243665400.

The previous prime is 366606599. The next prime is 366606673.

366606663 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 366606663 - 2⁶ = 366606599 is a prime.

It is a super-3 number, since 3×366606663³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366606673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183603 + ... + 185588.

It is an arithmetic number, because the mean of its divisors is an integer number (61285872).

Almost surely, 2^366606663 is an apocalyptic number.

366606663 is a deficient number, since it is larger than the sum of its proper divisors (123680313).

366606663 is a wasteful number, since it uses less digits than its factorization.

366606663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369525.

The product of its (nonzero) digits is 419904, while the sum is 42.

The square root of 366606663 is about 19146.9752963751. The cubic root of 366606663 is about 715.7040112936.

The spelling of 366606663 in words is "three hundred sixty-six million, six hundred six thousand, six hundred sixty-three".