220640444042 has 16 divisors (see below), whose sum is σ = 331681184640. Its totient is φ = 110080161792.

The previous prime is 220640444029. The next prime is 220640444047. The reversal of 220640444042 is 240444046022.

It is not an unprimeable number, because it can be changed into a prime (220640444047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4240778 + ... + 4292490.

It is an arithmetic number, because the mean of its divisors is an integer number (20730074040).

Almost surely, 2^220640444042 is an apocalyptic number.

220640444042 is a deficient number, since it is larger than the sum of its proper divisors (111040740598).

220640444042 is a wasteful number, since it uses less digits than its factorization.

220640444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56317.

The product of its (nonzero) digits is 49152, while the sum is 32.

The spelling of 220640444042 in words is "two hundred twenty billion, six hundred forty million, four hundred forty-four thousand, forty-two".