552111421440 has 192 divisors, whose sum is σ = 1803911316480. Its totient is φ = 144096788480.

The previous prime is 552111421439. The next prime is 552111421441. The reversal of 552111421440 is 44124111255.

It is an interprime number because it is at equal distance from previous prime (552111421439) and next prime (552111421441).

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 552111421398 and 552111421407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552111421441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1252645 + ... + 1635035.

It is an arithmetic number, because the mean of its divisors is an integer number (9395371440).

Almost surely, 2^552111421440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552111421440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901955658240).

552111421440 is an abundant number, since it is smaller than the sum of its proper divisors (1251799895040).

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

552111421440 is a wasteful number, since it uses less digits than its factorization.

552111421440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382468 (or 382448 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 552111421440 its reverse (44124111255), we get a palindrome (596235532695).

The spelling of 552111421440 in words is "five hundred fifty-two billion, one hundred eleven million, four hundred twenty-one thousand, four hundred forty".