220784790000 has 400 divisors, whose sum is σ = 752959775744. Its totient is φ = 55641600000.

The previous prime is 220784789993. The next prime is 220784790001. The reversal of 220784790000 is 97487022.

It is a tau number, because it is divible by the number of its divisors (400).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220784790001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 39987240 + ... + 39992760.

Almost surely, 2^220784790000 is an apocalyptic number.

220784790000 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 220784790000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376479887872).

220784790000 is an abundant number, since it is smaller than the sum of its proper divisors (532174985744).

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

220784790000 is a wasteful number, since it uses less digits than its factorization.

220784790000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626 (or 5605 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 220784790000 in words is "two hundred twenty billion, seven hundred eighty-four million, seven hundred ninety thousand".