228765565671 has 16 divisors (see below), whose sum is σ = 310337905920. Its totient is φ = 149854256640.

The previous prime is 228765565669. The next prime is 228765565703. The reversal of 228765565671 is 176565567822.

It is not a de Polignac number, because 228765565671 - 2¹ = 228765565669 is a prime.

It is a super-2 number, since 2×228765565671² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228765565471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68166 + ... + 679836.

It is an arithmetic number, because the mean of its divisors is an integer number (19396119120).

Almost surely, 2^228765565671 is an apocalyptic number.

228765565671 is a deficient number, since it is larger than the sum of its proper divisors (81572340249).

228765565671 is a wasteful number, since it uses less digits than its factorization.

228765565671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613846.

The product of its digits is 42336000, while the sum is 60.

The spelling of 228765565671 in words is "two hundred twenty-eight billion, seven hundred sixty-five million, five hundred sixty-five thousand, six hundred seventy-one".