228066024281 has 4 divisors (see below), whose sum is σ = 228071599332. Its totient is φ = 228060449232.

The previous prime is 228066024253. The next prime is 228066024283. The reversal of 228066024281 is 182420660822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 215300640025 + 12765384256 = 464005^2 + 112984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228066024281 is a prime.

It is a super-2 number, since 2×228066024281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228066024283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2725706 + ... + 2808131.

It is an arithmetic number, because the mean of its divisors is an integer number (57017899833).

Almost surely, 2^228066024281 is an apocalyptic number.

It is an amenable number.

228066024281 is a deficient number, since it is larger than the sum of its proper divisors (5575051).

228066024281 is an equidigital number, since it uses as much as digits as its factorization.

228066024281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575050.

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 228066024281 in words is "two hundred twenty-eight billion, sixty-six million, twenty-four thousand, two hundred eighty-one".