220145544203 has 32 divisors (see below), whose sum is σ = 243168500736. Its totient is φ = 198032110848.

The previous prime is 220145544149. The next prime is 220145544211. The reversal of 220145544203 is 302445541022.

It is not a de Polignac number, because 220145544203 - 2⁶ = 220145544139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220145544203.

It is not an unprimeable number, because it can be changed into a prime (220145544233) 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 31 ways as a sum of consecutive naturals, for example, 234946751 + ... + 234947687.

It is an arithmetic number, because the mean of its divisors is an integer number (7599015648).

Almost surely, 2^220145544203 is an apocalyptic number.

220145544203 is a deficient number, since it is larger than the sum of its proper divisors (23022956533).

220145544203 is a wasteful number, since it uses less digits than its factorization.

220145544203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243.

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 220145544203 in words is "two hundred twenty billion, one hundred forty-five million, five hundred forty-four thousand, two hundred three".