220335555445 has 4 divisors (see below), whose sum is σ = 264402666540. Its totient is φ = 176268444352.

The previous prime is 220335555431. The next prime is 220335555467. The reversal of 220335555445 is 544555533022.

220335555445 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 an emirpimes, since its reverse is a distinct semiprime: 544555533022 = 2 ⋅272277766511.

It can be written as a sum of positive squares in 2 ways, for example, as 126646303876 + 93689251569 = 355874^2 + 306087^2 .

It is a cyclic number.

It is not a de Polignac number, because 220335555445 - 2¹¹ = 220335553397 is a prime.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 22033555540 + ... + 22033555549.

It is an arithmetic number, because the mean of its divisors is an integer number (66100666635).

Almost surely, 2^220335555445 is an apocalyptic number.

It is an amenable number.

220335555445 is a deficient number, since it is larger than the sum of its proper divisors (44067111095).

220335555445 is an equidigital number, since it uses as much as digits as its factorization.

220335555445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44067111094.

The product of its (nonzero) digits is 1800000, while the sum is 43.

The spelling of 220335555445 in words is "two hundred twenty billion, three hundred thirty-five million, five hundred fifty-five thousand, four hundred forty-five".