228656444680 has 64 divisors (see below), whose sum is σ = 546347462400. Its totient is φ = 85881922560.

The previous prime is 228656444677. The next prime is 228656444701. The reversal of 228656444680 is 86444656822.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1245376 + ... + 1417135.

It is an arithmetic number, because the mean of its divisors is an integer number (8536679100).

Almost surely, 2^228656444680 is an apocalyptic number.

228656444680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228656444680 is an abundant number, since it is smaller than the sum of its proper divisors (317691017720).

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

228656444680 is a wasteful number, since it uses less digits than its factorization.

228656444680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662654 (or 2662650 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 55.

The spelling of 228656444680 in words is "two hundred twenty-eight billion, six hundred fifty-six million, four hundred forty-four thousand, six hundred eighty".