220042004656 has 20 divisors (see below), whose sum is σ = 426402284400. Its totient is φ = 110002705472.

The previous prime is 220042004653. The next prime is 220042004713. The reversal of 220042004656 is 656400240022.

It is a super-2 number, since 2×220042004656² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220042004653) 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 3 ways as a sum of consecutive naturals, for example, 1044076 + ... + 1237003.

It is an arithmetic number, because the mean of its divisors is an integer number (21320114220).

Almost surely, 2^220042004656 is an apocalyptic number.

It is an amenable number.

220042004656 is a deficient number, since it is larger than the sum of its proper divisors (206360279744).

220042004656 is a wasteful number, since it uses less digits than its factorization.

220042004656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287116 (or 2287110 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 220042004656 its reverse (656400240022), we get a palindrome (876442244678).

The spelling of 220042004656 in words is "two hundred twenty billion, forty-two million, four thousand, six hundred fifty-six".