550651631344 has 20 divisors (see below), whose sum is σ = 1129645626624. Its totient is φ = 259130179328.

The previous prime is 550651631317. The next prime is 550651631347. The reversal of 550651631344 is 443136156055.

It is a self number, because there is not a number n which added to its sum of digits gives 550651631344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550651631347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012226992 + ... + 1012227535.

Almost surely, 2^550651631344 is an apocalyptic number.

It is an amenable number.

550651631344 is an abundant number, since it is smaller than the sum of its proper divisors (578993995280).

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

550651631344 is a wasteful number, since it uses less digits than its factorization.

550651631344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024454552 (or 2024454546 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

Adding to 550651631344 its reverse (443136156055), we get a palindrome (993787787399).

The spelling of 550651631344 in words is "five hundred fifty billion, six hundred fifty-one million, six hundred thirty-one thousand, three hundred forty-four".