20660227 has 8 divisors (see below), whose sum is σ = 23700992. Its totient is φ = 17641800.

The previous prime is 20660203. The next prime is 20660231. The reversal of 20660227 is 72206602.

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 20660227 - 2⁷ = 20660099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20660327) 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, 3549 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (2962624).

Almost surely, 2^20660227 is an apocalyptic number.

20660227 is a deficient number, since it is larger than the sum of its proper divisors (3040765).

20660227 is a wasteful number, since it uses less digits than its factorization.

20660227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11169.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20660227 is about 4545.3522415760. The cubic root of 20660227 is about 274.3963707598.

Adding to 20660227 its reverse (72206602), we get a palindrome (92866829).

The spelling of 20660227 in words is "twenty million, six hundred sixty thousand, two hundred twenty-seven".