220828161 has 8 divisors (see below), whose sum is σ = 294521184. Its totient is φ = 147176960.

The previous prime is 220828133. The next prime is 220828171. The reversal of 220828161 is 161828022.

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 220828161 - 2⁷ = 220828033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220828171) 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, 5230 + ... + 21656.

It is an arithmetic number, because the mean of its divisors is an integer number (36815148).

Almost surely, 2^220828161 is an apocalyptic number.

It is an amenable number.

220828161 is a deficient number, since it is larger than the sum of its proper divisors (73693023).

220828161 is a wasteful number, since it uses less digits than its factorization.

220828161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20911.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 220828161 is about 14860.2880523898. The cubic root of 220828161 is about 604.4376177775.

The spelling of 220828161 in words is "two hundred twenty million, eight hundred twenty-eight thousand, one hundred sixty-one".