355530220000 has 120 divisors (see below), whose sum is σ = 883679582016. Its totient is φ = 140745216000.

The previous prime is 355530219971. The next prime is 355530220007. The reversal of 355530220000 is 22035553.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355530220007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1848369 + ... + 2031631.

Almost surely, 2^355530220000 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 355530220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441839791008).

355530220000 is an abundant number, since it is smaller than the sum of its proper divisors (528149362016).

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

355530220000 is an equidigital number, since it uses as much as digits as its factorization.

355530220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183390 (or 183367 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

Adding to 355530220000 its reverse (22035553), we get a palindrome (355552255553).

The spelling of 355530220000 in words is "three hundred fifty-five billion, five hundred thirty million, two hundred twenty thousand".