550220065512 has 128 divisors (see below), whose sum is σ = 1555255296000. Its totient is φ = 160943853312.

The previous prime is 550220065471. The next prime is 550220065517. The reversal of 550220065512 is 215560022055.

It is not an unprimeable number, because it can be changed into a prime (550220065517) 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 31 ways as a sum of consecutive naturals, for example, 934489 + ... + 1404887.

It is an arithmetic number, because the mean of its divisors is an integer number (12150432000).

Almost surely, 2^550220065512 is an apocalyptic number.

550220065512 is a gapful number since it is divisible by the number (52) 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 550220065512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777627648000).

550220065512 is an abundant number, since it is smaller than the sum of its proper divisors (1005035230488).

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

550220065512 is a wasteful number, since it uses less digits than its factorization.

550220065512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470607 (or 470603 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

Adding to 550220065512 its reverse (215560022055), we get a palindrome (765780087567).

The spelling of 550220065512 in words is "five hundred fifty billion, two hundred twenty million, sixty-five thousand, five hundred twelve".