228061162720 has 48 divisors (see below), whose sum is σ = 538835809680. Its totient is φ = 91217470464.

The previous prime is 228061162711. The next prime is 228061162723. The reversal of 228061162720 is 27261160822.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 228061162720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228061162723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375164 + ... + 2469316.

It is an arithmetic number, because the mean of its divisors is an integer number (11225746035).

Almost surely, 2^228061162720 is an apocalyptic number.

228061162720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228061162720 is an abundant number, since it is smaller than the sum of its proper divisors (310774646960).

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

228061162720 is a wasteful number, since it uses less digits than its factorization.

228061162720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109307 (or 109299 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 228061162720 in words is "two hundred twenty-eight billion, sixty-one million, one hundred sixty-two thousand, seven hundred twenty".