223545332544 has 56 divisors (see below), whose sum is σ = 605889657408. Its totient is φ = 72697666560.

The previous prime is 223545332533. The next prime is 223545332551. The reversal of 223545332544 is 445233545322.

It is a junction number, because it is equal to n+sod(n) for n = 223545332496 and 223545332505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14190892 + ... + 14206635.

It is an arithmetic number, because the mean of its divisors is an integer number (10819458168).

Almost surely, 2^223545332544 is an apocalyptic number.

223545332544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

223545332544 is an abundant number, since it is smaller than the sum of its proper divisors (382344324864).

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

223545332544 is a wasteful number, since it uses less digits than its factorization.

223545332544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28397583 (or 28397573 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 42.

Adding to 223545332544 its reverse (445233545322), we get a palindrome (668778877866).

The spelling of 223545332544 in words is "two hundred twenty-three billion, five hundred forty-five million, three hundred thirty-two thousand, five hundred forty-four".