220705342240 has 48 divisors (see below), whose sum is σ = 521892097272. Its totient is φ = 88201590784.

The previous prime is 220705342183. The next prime is 220705342243. The reversal of 220705342240 is 42243507022.

It can be written as a sum of positive squares in 4 ways, for example, as 197395381264 + 23309960976 = 444292^2 + 152676^2 .

It is not an unprimeable number, because it can be changed into a prime (220705342243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453199 + ... + 804238.

Almost surely, 2^220705342240 is an apocalyptic number.

220705342240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220705342240 is an abundant number, since it is smaller than the sum of its proper divisors (301186755032).

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

220705342240 is a wasteful number, since it uses less digits than its factorization.

220705342240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258549 (or 1258541 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 31.

Adding to 220705342240 its reverse (42243507022), we get a palindrome (262948849262).

The spelling of 220705342240 in words is "two hundred twenty billion, seven hundred five million, three hundred forty-two thousand, two hundred forty".