220440254353 has 4 divisors (see below), whose sum is σ = 240480277488. Its totient is φ = 200400231220.

The previous prime is 220440254299. The next prime is 220440254389. The reversal of 220440254353 is 353452044022.

220440254353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220440254353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220440254653) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 10020011551 + ... + 10020011572.

It is an arithmetic number, because the mean of its divisors is an integer number (60120069372).

Almost surely, 2^220440254353 is an apocalyptic number.

It is an amenable number.

220440254353 is a deficient number, since it is larger than the sum of its proper divisors (20040023135).

220440254353 is a wasteful number, since it uses less digits than its factorization.

220440254353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20040023134.

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 220440254353 its reverse (353452044022), we get a palindrome (573892298375).

The spelling of 220440254353 in words is "two hundred twenty billion, four hundred forty million, two hundred fifty-four thousand, three hundred fifty-three".