228416331566 has 16 divisors (see below), whose sum is σ = 362799447120. Its totient is φ = 107483944320.

The previous prime is 228416331511. The next prime is 228416331581. The reversal of 228416331566 is 665133614822.

It is a self number, because there is not a number n which added to its sum of digits gives 228416331566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449225 + ... + 811563.

It is an arithmetic number, because the mean of its divisors is an integer number (22674965445).

Almost surely, 2^228416331566 is an apocalyptic number.

228416331566 is a deficient number, since it is larger than the sum of its proper divisors (134383115554).

228416331566 is a wasteful number, since it uses less digits than its factorization.

228416331566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380899.

The product of its digits is 1244160, while the sum is 47.

The spelling of 228416331566 in words is "two hundred twenty-eight billion, four hundred sixteen million, three hundred thirty-one thousand, five hundred sixty-six".