220010066 has 32 divisors (see below), whose sum is σ = 353395440. Its totient is φ = 102525696.

The previous prime is 220010057. The next prime is 220010071. The reversal of 220010066 is 660010022.

It can be written as a sum of positive squares in 8 ways, for example, as 108264025 + 111746041 = 10405^2 + 10571^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 336596 + ... + 337248.

Almost surely, 2^220010066 is an apocalyptic number.

220010066 is a deficient number, since it is larger than the sum of its proper divisors (133385374).

220010066 is a wasteful number, since it uses less digits than its factorization.

220010066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 220010066 is about 14832.7362951008. The cubic root of 220010066 is about 603.6902805904.

Adding to 220010066 its reverse (660010022), we get a palindrome (880020088).

The spelling of 220010066 in words is "two hundred twenty million, ten thousand, sixty-six".