7228165569 has 4 divisors (see below), whose sum is σ = 9637554096. Its totient is φ = 4818777044.

The previous prime is 7228165517. The next prime is 7228165601. The reversal of 7228165569 is 9655618227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7228165569 is a prime.

It is a super-2 number, since 2×7228165569² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7228165369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204694259 + ... + 1204694264.

It is an arithmetic number, because the mean of its divisors is an integer number (2409388524).

Almost surely, 2^7228165569 is an apocalyptic number.

It is an amenable number.

7228165569 is a deficient number, since it is larger than the sum of its proper divisors (2409388527).

7228165569 is a wasteful number, since it uses less digits than its factorization.

7228165569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409388526.

The product of its digits is 1814400, while the sum is 51.

The square root of 7228165569 is about 85018.6189549089. The cubic root of 7228165569 is about 1933.4934150807.

The spelling of 7228165569 in words is "seven billion, two hundred twenty-eight million, one hundred sixty-five thousand, five hundred sixty-nine".