228665597071 has 4 divisors (see below), whose sum is σ = 228693624544. Its totient is φ = 228637569600.

The previous prime is 228665597059. The next prime is 228665597117. The reversal of 228665597071 is 170795566822.

228665597071 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, and also an emirpimes, since its reverse is a distinct semiprime: 170795566822 = 2 ⋅85397783411.

It is a cyclic number.

It is not a de Polignac number, because 228665597071 - 2¹⁷ = 228665465999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228665596997 and 228665597015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228665597021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14001495 + ... + 14017816.

It is an arithmetic number, because the mean of its divisors is an integer number (57173406136).

Almost surely, 2^228665597071 is an apocalyptic number.

228665597071 is a deficient number, since it is larger than the sum of its proper divisors (28027473).

228665597071 is an equidigital number, since it uses as much as digits as its factorization.

228665597071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28027472.

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 228665597071 in words is "two hundred twenty-eight billion, six hundred sixty-five million, five hundred ninety-seven thousand, seventy-one".