228158231072 has 54 divisors (see below), whose sum is σ = 477259618437. Its totient is φ = 107346962944.

The previous prime is 228158230991. The next prime is 228158231167. The reversal of 228158231072 is 270132851822.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 208816097296 + 19342133776 = 456964^2 + 139076^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=337756.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 45932333 + ... + 45937299.

Almost surely, 2^228158231072 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 228158231072

228158231072 is an abundant number, since it is smaller than the sum of its proper divisors (249101387365).

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

228158231072 is an frugal number, since it uses more digits than its factorization.

228158231072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9978 (or 4986 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 228158231072 in words is "two hundred twenty-eight billion, one hundred fifty-eight million, two hundred thirty-one thousand, seventy-two".