220136165 has 8 divisors (see below), whose sum is σ = 266887320. Its totient is φ = 174292992.

The previous prime is 220136159. The next prime is 220136167. The reversal of 220136165 is 561631022.

220136165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 55860676 + 164275489 = 7474^2 + 12817^2 .

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 220136165 - 2⁴ = 220136149 is a prime.

It is a super-2 number, since 2×220136165² = 96919862281814450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220136167) 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, 226460 + ... + 227429.

It is an arithmetic number, because the mean of its divisors is an integer number (33360915).

Almost surely, 2^220136165 is an apocalyptic number.

It is an amenable number.

220136165 is a deficient number, since it is larger than the sum of its proper divisors (46751155).

220136165 is an equidigital number, since it uses as much as digits as its factorization.

220136165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453991.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 220136165 is about 14836.9863853816. The cubic root of 220136165 is about 603.8055938017.

Adding to 220136165 its reverse (561631022), we get a palindrome (781767187).

The spelling of 220136165 in words is "two hundred twenty million, one hundred thirty-six thousand, one hundred sixty-five".