550011440000 has 320 divisors, whose sum is σ = 1514903575680. Its totient is φ = 197164800000.

The previous prime is 550011439997. The next prime is 550011440047. The reversal of 550011440000 is 44110055.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 62475599 + ... + 62484401.

It is an arithmetic number, because the mean of its divisors is an integer number (4734073674).

Almost surely, 2^550011440000 is an apocalyptic number.

550011440000 is a gapful number since it is divisible by the number (50) 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 550011440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (757451787840).

550011440000 is an abundant number, since it is smaller than the sum of its proper divisors (964892135680).

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

550011440000 is an equidigital number, since it uses as much as digits as its factorization.

550011440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8919 (or 8892 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 550011440000 its reverse (44110055), we get a palindrome (550055550055).

The spelling of 550011440000 in words is "five hundred fifty billion, eleven million, four hundred forty thousand".