220461161 has 16 divisors (see below), whose sum is σ = 245203200. Its totient is φ = 197342208.

The previous prime is 220461139. The next prime is 220461167. The reversal of 220461161 is 161164022.

It is not a de Polignac number, because 220461161 - 2¹⁰ = 220460137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220461167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21641 + ... + 30153.

It is an arithmetic number, because the mean of its divisors is an integer number (15325200).

Almost surely, 2^220461161 is an apocalyptic number.

It is an amenable number.

220461161 is a deficient number, since it is larger than the sum of its proper divisors (24742039).

220461161 is a wasteful number, since it uses less digits than its factorization.

220461161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 220461161 is about 14847.9345701683. The cubic root of 220461161 is about 604.1025886371.

The spelling of 220461161 in words is "two hundred twenty million, four hundred sixty-one thousand, one hundred sixty-one".