224755557972 has 96 divisors (see below), whose sum is σ = 579043261440. Its totient is φ = 67283124480.

The previous prime is 224755557947. The next prime is 224755557973. The reversal of 224755557972 is 279755557422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224755557973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14359983 + ... + 14375625.

It is an arithmetic number, because the mean of its divisors is an integer number (6031700640).

Almost surely, 2^224755557972 is an apocalyptic number.

224755557972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224755557972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289521630720).

224755557972 is an abundant number, since it is smaller than the sum of its proper divisors (354287703468).

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

224755557972 is a wasteful number, since it uses less digits than its factorization.

224755557972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16973 (or 16971 counting only the distinct ones).

The product of its digits is 61740000, while the sum is 60.

The spelling of 224755557972 in words is "two hundred twenty-four billion, seven hundred fifty-five million, five hundred fifty-seven thousand, nine hundred seventy-two".