220553242144449 has 4 divisors (see below), whose sum is σ = 294070989525936. Its totient is φ = 147035494762964.

The previous prime is 220553242144429. The next prime is 220553242144481. The reversal of 220553242144449 is 944441242355022.

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 not a de Polignac number, because 220553242144449 - 2⁹ = 220553242143937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220553242144429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36758873690739 + ... + 36758873690744.

It is an arithmetic number, because the mean of its divisors is an integer number (73517747381484).

Almost surely, 2^{220553242144449} is an apocalyptic number.

It is an amenable number.

220553242144449 is a deficient number, since it is larger than the sum of its proper divisors (73517747381487).

220553242144449 is an equidigital number, since it uses as much as digits as its factorization.

220553242144449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73517747381486.

The product of its (nonzero) digits is 11059200, while the sum is 51.

The spelling of 220553242144449 in words is "two hundred twenty trillion, five hundred fifty-three billion, two hundred forty-two million, one hundred forty-four thousand, four hundred forty-nine".