228164365069 has 4 divisors (see below), whose sum is σ = 228573996444. Its totient is φ = 227754733696.

The previous prime is 228164365027. The next prime is 228164365081. The reversal of 228164365069 is 960563461822.

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 123179940900 + 104984424169 = 350970^2 + 324013^2 .

It is a cyclic number.

It is not a de Polignac number, because 228164365069 - 2⁹ = 228164364557 is a prime.

It is a super-2 number, since 2×228164365069² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228164365669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204814852 + ... + 204815965.

It is an arithmetic number, because the mean of its divisors is an integer number (57143499111).

Almost surely, 2^228164365069 is an apocalyptic number.

It is an amenable number.

228164365069 is a deficient number, since it is larger than the sum of its proper divisors (409631375).

228164365069 is an equidigital number, since it uses as much as digits as its factorization.

228164365069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409631374.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 228164365069 in words is "two hundred twenty-eight billion, one hundred sixty-four million, three hundred sixty-five thousand, sixty-nine".