220066145 has 8 divisors (see below), whose sum is σ = 284393256. Its totient is φ = 162510336.

The previous prime is 220066141. The next prime is 220066153. The reversal of 220066145 is 541660022.

It can be written as a sum of positive squares in 4 ways, for example, as 107584 + 219958561 = 328^2 + 14831^2 .

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 220066145 - 2² = 220066141 is a prime.

It is a super-2 number, since 2×220066145² = 96858216350322050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220066141) 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, 1692752 + ... + 1692881.

It is an arithmetic number, because the mean of its divisors is an integer number (35549157).

Almost surely, 2^220066145 is an apocalyptic number.

It is an amenable number.

220066145 is a deficient number, since it is larger than the sum of its proper divisors (64327111).

220066145 is a wasteful number, since it uses less digits than its factorization.

220066145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385651.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 220066145 is about 14834.6265541132. The cubic root of 220066145 is about 603.7415683517.

The spelling of 220066145 in words is "two hundred twenty million, sixty-six thousand, one hundred forty-five".