228116555285 has 8 divisors (see below), whose sum is σ = 281138241336. Its totient is φ = 177560994240.

The previous prime is 228116555281. The next prime is 228116555363. The reversal of 228116555285 is 582555611822.

228116555285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 64712236996 + 163404318289 = 254386^2 + 404233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228116555285 - 2² = 228116555281 is a prime.

It is a super-2 number, since 2×228116555285² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228116555281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616531046 + ... + 616531415.

It is an arithmetic number, because the mean of its divisors is an integer number (35142280167).

Almost surely, 2^228116555285 is an apocalyptic number.

It is an amenable number.

228116555285 is a deficient number, since it is larger than the sum of its proper divisors (53021686051).

228116555285 is a wasteful number, since it uses less digits than its factorization.

228116555285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233062503.

The product of its digits is 1920000, while the sum is 50.

The spelling of 228116555285 in words is "two hundred twenty-eight billion, one hundred sixteen million, five hundred fifty-five thousand, two hundred eighty-five".