220235233650 has 96 divisors (see below), whose sum is σ = 556802987328. Its totient is φ = 57597849600.

The previous prime is 220235233649. The next prime is 220235233661. The reversal of 220235233650 is 56332532022.

It is a happy number.

It is a Curzon number.

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, 1641090 + ... + 1770210.

It is an arithmetic number, because the mean of its divisors is an integer number (5800031118).

Almost surely, 2^220235233650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220235233650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278401493664).

220235233650 is an abundant number, since it is smaller than the sum of its proper divisors (336567753678).

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

220235233650 is a wasteful number, since it uses less digits than its factorization.

220235233650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129356 (or 129351 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 220235233650 its reverse (56332532022), we get a palindrome (276567765672).

The spelling of 220235233650 in words is "two hundred twenty billion, two hundred thirty-five million, two hundred thirty-three thousand, six hundred fifty".