666484223 has 8 divisors (see below), whose sum is σ = 704891520. Its totient is φ = 628409880.

The previous prime is 666484183. The next prime is 666484241. The reversal of 666484223 is 322484666.

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

It is a cyclic number.

It is not a de Polignac number, because 666484223 - 2²⁴ = 649707007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666484123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79115 + ... + 87132.

It is an arithmetic number, because the mean of its divisors is an integer number (88111440).

Almost surely, 2^666484223 is an apocalyptic number.

666484223 is a deficient number, since it is larger than the sum of its proper divisors (38407297).

666484223 is a wasteful number, since it uses less digits than its factorization.

666484223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166477.

The product of its digits is 331776, while the sum is 41.

The square root of 666484223 is about 25816.3557265544. The cubic root of 666484223 is about 873.5007678542.

The spelling of 666484223 in words is "six hundred sixty-six million, four hundred eighty-four thousand, two hundred twenty-three".