228173265680 has 20 divisors (see below), whose sum is σ = 530502842892. Its totient is φ = 91269306240.

The previous prime is 228173265659. The next prime is 228173265709. The reversal of 228173265680 is 86562371822.

It can be written as a sum of positive squares in 2 ways, for example, as 100017857536 + 128155408144 = 316256^2 + 357988^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426082831 + ... + 1426082990.

Almost surely, 2^228173265680 is an apocalyptic number.

228173265680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228173265680 is an abundant number, since it is smaller than the sum of its proper divisors (302329577212).

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

228173265680 is a wasteful number, since it uses less digits than its factorization.

228173265680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852165834 (or 2852165828 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 228173265680 in words is "two hundred twenty-eight billion, one hundred seventy-three million, two hundred sixty-five thousand, six hundred eighty".