550040100320 has 192 divisors, whose sum is σ = 1340353453824. Its totient is φ = 213183774720.

The previous prime is 550040100317. The next prime is 550040100343. The reversal of 550040100320 is 23001040055.

It is a super-2 number, since 2×550040100320² (a number of 24 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 550040100292 and 550040100301.

It is a congruent number.

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, 817295504 + ... + 817296176.

It is an arithmetic number, because the mean of its divisors is an integer number (6981007572).

Almost surely, 2^550040100320 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 550040100320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670176726912).

550040100320 is an abundant number, since it is smaller than the sum of its proper divisors (790313353504).

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

550040100320 is a wasteful number, since it uses less digits than its factorization.

550040100320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 550040100320 its reverse (23001040055), we get a palindrome (573041140375).

The spelling of 550040100320 in words is "five hundred fifty billion, forty million, one hundred thousand, three hundred twenty".