656320104112 has 40 divisors (see below), whose sum is σ = 1315745965440. Its totient is φ = 316777520640.

The previous prime is 656320104107. The next prime is 656320104119. The reversal of 656320104112 is 211401023656.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (656320104119) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2095188 + ... + 2387980.

It is an arithmetic number, because the mean of its divisors is an integer number (32893649136).

Almost surely, 2^656320104112 is an apocalyptic number.

It is an amenable number.

656320104112 is an abundant number, since it is smaller than the sum of its proper divisors (659425861328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656320104112 is a wasteful number, since it uses less digits than its factorization.

656320104112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297661 (or 297655 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 656320104112 its reverse (211401023656), we get a palindrome (867721127768).

The spelling of 656320104112 in words is "six hundred fifty-six billion, three hundred twenty million, one hundred four thousand, one hundred twelve".