220450161 has 8 divisors (see below), whose sum is σ = 299479680. Its totient is φ = 144193712.

The previous prime is 220450123. The next prime is 220450177. The reversal of 220450161 is 161054022.

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 220450161 - 2¹⁰ = 220449137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220452161) 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, 693081 + ... + 693398.

It is an arithmetic number, because the mean of its divisors is an integer number (37434960).

Almost surely, 2^220450161 is an apocalyptic number.

It is an amenable number.

220450161 is a deficient number, since it is larger than the sum of its proper divisors (79029519).

220450161 is a wasteful number, since it uses less digits than its factorization.

220450161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386535.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 220450161 is about 14847.5641436567. The cubic root of 220450161 is about 604.0925411545.

The spelling of 220450161 in words is "two hundred twenty million, four hundred fifty thousand, one hundred sixty-one".