220233503305 has 16 divisors (see below), whose sum is σ = 268606348560. Its totient is φ = 173322806272.

The previous prime is 220233503299. The next prime is 220233503309. The reversal of 220233503305 is 503305332022.

It can be written as a sum of positive squares in 8 ways, for example, as 3554425161 + 216679078144 = 59619^2 + 465488^2 .

It is a cyclic number.

It is not a de Polignac number, because 220233503305 - 2¹⁵ = 220233470537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220233503309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168444 + ... + 1343773.

It is an arithmetic number, because the mean of its divisors is an integer number (16787896785).

Almost surely, 2^220233503305 is an apocalyptic number.

It is an amenable number.

220233503305 is a deficient number, since it is larger than the sum of its proper divisors (48372845255).

220233503305 is a wasteful number, since it uses less digits than its factorization.

220233503305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512508.

The product of its (nonzero) digits is 16200, while the sum is 28.

Adding to 220233503305 its reverse (503305332022), we get a palindrome (723538835327).

The spelling of 220233503305 in words is "two hundred twenty billion, two hundred thirty-three million, five hundred three thousand, three hundred five".