228159720000 has 1120 divisors, whose sum is σ = 911250806400. Its totient is φ = 55931904000.

The previous prime is 228159719999. The next prime is 228159720011. The reversal of 228159720000 is 27951822.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 5306039979 + ... + 5306040021.

Almost surely, 2^228159720000 is an apocalyptic number.

228159720000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228159720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455625403200).

228159720000 is an abundant number, since it is smaller than the sum of its proper divisors (683091086400).

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

228159720000 is an frugal number, since it uses more digits than its factorization.

228159720000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 228159720000 in words is "two hundred twenty-eight billion, one hundred fifty-nine million, seven hundred twenty thousand".