550550346544 has 160 divisors (see below), whose sum is σ = 1187898969600. Its totient is φ = 247154561280.

The previous prime is 550550346527. The next prime is 550550346557. The reversal of 550550346544 is 445643055055.

It is a junction number, because it is equal to n+sod(n) for n = 550550346494 and 550550346503.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690777954 + ... + 690778750.

It is an arithmetic number, because the mean of its divisors is an integer number (7424368560).

Almost surely, 2^550550346544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550550346544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593949484800).

550550346544 is an abundant number, since it is smaller than the sum of its proper divisors (637348623056).

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

550550346544 is a wasteful number, since it uses less digits than its factorization.

550550346544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 46.

The spelling of 550550346544 in words is "five hundred fifty billion, five hundred fifty million, three hundred forty-six thousand, five hundred forty-four".