228544647552 has 128 divisors (see below), whose sum is σ = 726410748000. Its totient is φ = 70321416192.

The previous prime is 228544647523. The next prime is 228544647553. The reversal of 228544647552 is 255746445822.

228544647552 is a `hidden beast` number, since 2 + 2 + 8 + 5 + 4 + 46 + 47 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228544647553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2498527 + ... + 2588382.

Almost surely, 2^228544647552 is an apocalyptic number.

It is an amenable number.

228544647552 is an abundant number, since it is smaller than the sum of its proper divisors (497866100448).

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

228544647552 is a wasteful number, since it uses less digits than its factorization.

228544647552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086945 (or 5086927 counting only the distinct ones).

The product of its digits is 21504000, while the sum is 54.

It can be divided in two parts, 228544 and 647552, that added together give a square (876096 = 936²).

The spelling of 228544647552 in words is "two hundred twenty-eight billion, five hundred forty-four million, six hundred forty-seven thousand, five hundred fifty-two".