228116665 has 16 divisors (see below), whose sum is σ = 313091712. Its totient is φ = 156299904.

The previous prime is 228116633. The next prime is 228116683. The reversal of 228116665 is 566611822.

228116665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 228116665 - 2⁵ = 228116633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80757 + ... + 83533.

It is an arithmetic number, because the mean of its divisors is an integer number (19568232).

Almost surely, 2^228116665 is an apocalyptic number.

It is an amenable number.

228116665 is a deficient number, since it is larger than the sum of its proper divisors (84975047).

228116665 is a wasteful number, since it uses less digits than its factorization.

228116665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136.

The product of its digits is 34560, while the sum is 37.

The square root of 228116665 is about 15103.5315406696. The cubic root of 228116665 is about 611.0156554732.

The spelling of 228116665 in words is "two hundred twenty-eight million, one hundred sixteen thousand, six hundred sixty-five".