3220043015550 has 96 divisors (see below), whose sum is σ = 8043813734400. Its totient is φ = 852436547200.

The previous prime is 3220043015531. The next prime is 3220043015551. The reversal of 3220043015550 is 555103400223.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220043015551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40704535 + ... + 40783565.

It is an arithmetic number, because the mean of its divisors is an integer number (83789726400).

Almost surely, 2^{3220043015550} is an apocalyptic number.

3220043015550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220043015550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4021906867200).

3220043015550 is an abundant number, since it is smaller than the sum of its proper divisors (4823770718850).

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

3220043015550 is a wasteful number, since it uses less digits than its factorization.

3220043015550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81018 (or 81013 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 3220043015550 its reverse (555103400223), we get a palindrome (3775146415773).

The spelling of 3220043015550 in words is "three trillion, two hundred twenty billion, forty-three million, fifteen thousand, five hundred fifty".