220610066 has 8 divisors (see below), whose sum is σ = 345302784. Its totient is φ = 105509140.

The previous prime is 220610063. The next prime is 220610077. The reversal of 220610066 is 660016022.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220610063) 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 3 ways as a sum of consecutive naturals, for example, 2397890 + ... + 2397981.

It is an arithmetic number, because the mean of its divisors is an integer number (43162848).

Almost surely, 2^220610066 is an apocalyptic number.

220610066 is a deficient number, since it is larger than the sum of its proper divisors (124692718).

220610066 is a wasteful number, since it uses less digits than its factorization.

220610066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795896.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 220610066 is about 14852.9480575406. The cubic root of 220610066 is about 604.2385667095.

Adding to 220610066 its reverse (660016022), we get a palindrome (880626088).

The spelling of 220610066 in words is "two hundred twenty million, six hundred ten thousand, sixty-six".