220671361 has 16 divisors (see below), whose sum is σ = 239201280. Its totient is φ = 202973760.

The previous prime is 220671349. The next prime is 220671391. The reversal of 220671361 is 163176022.

It is a cyclic number.

It is not a de Polignac number, because 220671361 - 2²³ = 212282753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220671331) 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 15 ways as a sum of consecutive naturals, for example, 122455 + ... + 124243.

It is an arithmetic number, because the mean of its divisors is an integer number (14950080).

Almost surely, 2^220671361 is an apocalyptic number.

It is an amenable number.

220671361 is a deficient number, since it is larger than the sum of its proper divisors (18529919).

220671361 is a wasteful number, since it uses less digits than its factorization.

220671361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 220671361 is about 14855.0113093192. The cubic root of 220671361 is about 604.2945227137.

The spelling of 220671361 in words is "two hundred twenty million, six hundred seventy-one thousand, three hundred sixty-one".