204445545424403 has 4 divisors (see below), whose sum is σ = 204445934415528. Its totient is φ = 204445156433280.

The previous prime is 204445545424381. The next prime is 204445545424411. The reversal of 204445545424403 is 304424545544402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204445545424403 - 2⁶ = 204445545424339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204445545424433) 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, 193706126 + ... + 194758707.

It is an arithmetic number, because the mean of its divisors is an integer number (51111483603882).

Almost surely, 2^{204445545424403} is an apocalyptic number.

204445545424403 is a deficient number, since it is larger than the sum of its proper divisors (388991125).

204445545424403 is an equidigital number, since it uses as much as digits as its factorization.

204445545424403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388991124.

The product of its (nonzero) digits is 24576000, while the sum is 50.

The spelling of 204445545424403 in words is "two hundred four trillion, four hundred forty-five billion, five hundred forty-five million, four hundred twenty-four thousand, four hundred three".