220543400000 has 336 divisors, whose sum is σ = 682041596544. Its totient is φ = 68736000000.

The previous prime is 220543399969. The next prime is 220543400023. The reversal of 220543400000 is 4345022.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15392840 + ... + 15407160.

It is an arithmetic number, because the mean of its divisors is an integer number (2029885704).

Almost surely, 2^220543400000 is an apocalyptic number.

220543400000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220543400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341020798272).

220543400000 is an abundant number, since it is smaller than the sum of its proper divisors (461498196544).

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

220543400000 is an equidigital number, since it uses as much as digits as its factorization.

220543400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14376 (or 14346 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 220543400000 its reverse (4345022), we get a palindrome (220547745022).

The spelling of 220543400000 in words is "two hundred twenty billion, five hundred forty-three million, four hundred thousand".