220311305744 has 10 divisors (see below), whose sum is σ = 426853154910. Its totient is φ = 110155652864.

The previous prime is 220311305677. The next prime is 220311305759. The reversal of 220311305744 is 447503113022.

220311305744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 145679622400 + 74631683344 = 381680^2 + 273188^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220311305744.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6884728289 + ... + 6884728320.

It is an arithmetic number, because the mean of its divisors is an integer number (42685315491).

Almost surely, 2^220311305744 is an apocalyptic number.

It is an amenable number.

220311305744 is a deficient number, since it is larger than the sum of its proper divisors (206541849166).

220311305744 is a wasteful number, since it uses less digits than its factorization.

220311305744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13769456617 (or 13769456611 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 220311305744 its reverse (447503113022), we get a palindrome (667814418766).

The spelling of 220311305744 in words is "two hundred twenty billion, three hundred eleven million, three hundred five thousand, seven hundred forty-four".