228532618178 has 6 divisors (see below), whose sum is σ = 342799941369. Its totient is φ = 114265971056.

The previous prime is 228532618169. The next prime is 228532618183. The reversal of 228532618178 is 871816235822.

It can be written as a sum of positive squares in 2 ways, for example, as 139093940209 + 89438677969 = 372953^2 + 299063^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=338033.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 507050 + ... + 845082.

Almost surely, 2^228532618178 is an apocalyptic number.

228532618178 is a deficient number, since it is larger than the sum of its proper divisors (114267323191).

228532618178 is an frugal number, since it uses more digits than its factorization.

228532618178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676068 (or 338035 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 53.

The spelling of 228532618178 in words is "two hundred twenty-eight billion, five hundred thirty-two million, six hundred eighteen thousand, one hundred seventy-eight".