30555541220 has 96 divisors (see below), whose sum is σ = 70402375680. Its totient is φ = 11096196480.

The previous prime is 30555541207. The next prime is 30555541229. The reversal of 30555541220 is 2214555503.

It is not an unprimeable number, because it can be changed into a prime (30555541229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1200749 + ... + 1225931.

It is an arithmetic number, because the mean of its divisors is an integer number (733358080).

Almost surely, 2^30555541220 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 30555541220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35201187840).

30555541220 is an abundant number, since it is smaller than the sum of its proper divisors (39846834460).

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

30555541220 is a wasteful number, since it uses less digits than its factorization.

30555541220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25345 (or 25343 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 30555541220 in words is "thirty billion, five hundred fifty-five million, five hundred forty-one thousand, two hundred twenty".