228385667965 has 48 divisors (see below), whose sum is σ = 342332085888. Its totient is φ = 143209168128.

The previous prime is 228385667963. The next prime is 228385668011. The reversal of 228385667965 is 569766583822.

It is not a de Polignac number, because 228385667965 - 2¹ = 228385667963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228385667965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228385667963) 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 47 ways as a sum of consecutive naturals, for example, 452479 + ... + 813331.

It is an arithmetic number, because the mean of its divisors is an integer number (7131918456).

Almost surely, 2^228385667965 is an apocalyptic number.

It is an amenable number.

228385667965 is a deficient number, since it is larger than the sum of its proper divisors (113946417923).

228385667965 is a wasteful number, since it uses less digits than its factorization.

228385667965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360998 (or 360985 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 67.

The spelling of 228385667965 in words is "two hundred twenty-eight billion, three hundred eighty-five million, six hundred sixty-seven thousand, nine hundred sixty-five".