224135155520 has 56 divisors (see below), whose sum is σ = 534063634944. Its totient is φ = 89596647936.

The previous prime is 224135155507. The next prime is 224135155537. The reversal of 224135155520 is 25551531422.

It is a happy number.

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, 277949 + ... + 724931.

It is an arithmetic number, because the mean of its divisors is an integer number (9536850624).

Almost surely, 2^224135155520 is an apocalyptic number.

224135155520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224135155520 is an abundant number, since it is smaller than the sum of its proper divisors (309928479424).

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

224135155520 is a wasteful number, since it uses less digits than its factorization.

224135155520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448567 (or 448557 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 224135155520 its reverse (25551531422), we get a palindrome (249686686942).

The spelling of 224135155520 in words is "two hundred twenty-four billion, one hundred thirty-five million, one hundred fifty-five thousand, five hundred twenty".