220668007 has 8 divisors (see below), whose sum is σ = 267026976. Its totient is φ = 178017792.

The previous prime is 220668001. The next prime is 220668011. The reversal of 220668007 is 700866022.

It is a happy number.

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 220668007 - 2³ = 220667999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220668007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220668001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927058 + ... + 927295.

It is an arithmetic number, because the mean of its divisors is an integer number (33378372).

Almost surely, 2^220668007 is an apocalyptic number.

220668007 is a deficient number, since it is larger than the sum of its proper divisors (46358969).

220668007 is a wasteful number, since it uses less digits than its factorization.

220668007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854377.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 220668007 is about 14854.8984176937. The cubic root of 220668007 is about 604.2914611261.

The spelling of 220668007 in words is "two hundred twenty million, six hundred sixty-eight thousand, seven".