550322311440 has 80 divisors (see below), whose sum is σ = 1861090007616. Its totient is φ = 133411468800.

The previous prime is 550322311421. The next prime is 550322311453. The reversal of 550322311440 is 44113223055.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 550322311398 and 550322311407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104225071 + ... + 104230350.

Almost surely, 2^550322311440 is an apocalyptic number.

It is an amenable number.

550322311440 is an abundant number, since it is smaller than the sum of its proper divisors (1310767696176).

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

550322311440 is a wasteful number, since it uses less digits than its factorization.

550322311440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208455448 (or 208455442 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 550322311440 its reverse (44113223055), we get a palindrome (594435534495).

The spelling of 550322311440 in words is "five hundred fifty billion, three hundred twenty-two million, three hundred eleven thousand, four hundred forty".