228801169152 has 180 divisors, whose sum is σ = 705771186120. Its totient is φ = 73636964352.

The previous prime is 228801169109. The next prime is 228801169213. The reversal of 228801169152 is 251961108822.

It is a junction number, because it is equal to n+sod(n) for n = 228801169098 and 228801169107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 411103 + ... + 791585.

It is an arithmetic number, because the mean of its divisors is an integer number (3920951034).

Almost surely, 2^228801169152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228801169152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352885593060).

228801169152 is an abundant number, since it is smaller than the sum of its proper divisors (476970016968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228801169152 is an equidigital number, since it uses as much as digits as its factorization.

228801169152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380540 (or 380517 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 228801169152 in words is "two hundred twenty-eight billion, eight hundred one million, one hundred sixty-nine thousand, one hundred fifty-two".