220282161 has 16 divisors (see below), whose sum is σ = 321796800. Its totient is φ = 132926720.

The previous prime is 220282159. The next prime is 220282171. The reversal of 220282161 is 161282022.

It is a cyclic number.

It is not a de Polignac number, because 220282161 - 2¹ = 220282159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220282171) 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, 6636 + ... + 22013.

It is an arithmetic number, because the mean of its divisors is an integer number (20112300).

Almost surely, 2^220282161 is an apocalyptic number.

It is an amenable number.

220282161 is a deficient number, since it is larger than the sum of its proper divisors (101514639).

220282161 is a wasteful number, since it uses less digits than its factorization.

220282161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28896.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 220282161 is about 14841.9055717249. The cubic root of 220282161 is about 603.9390471436.

The spelling of 220282161 in words is "two hundred twenty million, two hundred eighty-two thousand, one hundred sixty-one".