220265669 has 4 divisors (see below), whose sum is σ = 237209196. Its totient is φ = 203322144.

The previous prime is 220265629. The next prime is 220265671. The reversal of 220265669 is 966562022.

It is a happy number.

220265669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 143089444 + 77176225 = 11962^2 + 8785^2 .

It is a cyclic number.

It is not a de Polignac number, because 220265669 - 2²⁰ = 219217093 is a prime.

It is a super-2 number, since 2×220265669² = 97033929880035122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220265629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8471744 + ... + 8471769.

It is an arithmetic number, because the mean of its divisors is an integer number (59302299).

Almost surely, 2^220265669 is an apocalyptic number.

It is an amenable number.

220265669 is a deficient number, since it is larger than the sum of its proper divisors (16943527).

220265669 is a wasteful number, since it uses less digits than its factorization.

220265669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16943526.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 220265669 is about 14841.3499722903. The cubic root of 220265669 is about 603.9239749421.

The spelling of 220265669 in words is "two hundred twenty million, two hundred sixty-five thousand, six hundred sixty-nine".