555221440110 has 128 divisors (see below), whose sum is σ = 1375605504000. Its totient is φ = 143349248000.

The previous prime is 555221440061. The next prime is 555221440117. The reversal of 555221440110 is 11044122555.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555221440117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52727326 + ... + 52737854.

It is an arithmetic number, because the mean of its divisors is an integer number (10746918000).

Almost surely, 2^555221440110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555221440110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687802752000).

555221440110 is an abundant number, since it is smaller than the sum of its proper divisors (820384063890).

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

555221440110 is a wasteful number, since it uses less digits than its factorization.

555221440110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10986.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 555221440110 its reverse (11044122555), we get a palindrome (566265562665).

The spelling of 555221440110 in words is "five hundred fifty-five billion, two hundred twenty-one million, four hundred forty thousand, one hundred ten".