220675565 has 12 divisors (see below), whose sum is σ = 291073692. Its totient is φ = 160490880.

The previous prime is 220675537. The next prime is 220675579. The reversal of 220675565 is 565576022.

It can be written as a sum of positive squares in 2 ways, for example, as 103754596 + 116920969 = 10186^2 + 10813^2 .

It is not a de Polignac number, because 220675565 - 2¹⁸ = 220413421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181772 + ... + 182981.

It is an arithmetic number, because the mean of its divisors is an integer number (24256141).

Almost surely, 2^220675565 is an apocalyptic number.

It is an amenable number.

220675565 is a deficient number, since it is larger than the sum of its proper divisors (70398127).

220675565 is a wasteful number, since it uses less digits than its factorization.

220675565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364780 (or 364769 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 220675565 is about 14855.1528097156. The cubic root of 220675565 is about 604.2983601518.

The spelling of 220675565 in words is "two hundred twenty million, six hundred seventy-five thousand, five hundred sixty-five".