656203465112 has 64 divisors (see below), whose sum is σ = 1334252424960. Its totient is φ = 300755664000.

The previous prime is 656203465109. The next prime is 656203465117. The reversal of 656203465112 is 211564302656.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 656203465112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656203465117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66124583 + ... + 66134505.

It is an arithmetic number, because the mean of its divisors is an integer number (20847694140).

Almost surely, 2^656203465112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656203465112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667126212480).

656203465112 is an abundant number, since it is smaller than the sum of its proper divisors (678048959848).

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

656203465112 is a wasteful number, since it uses less digits than its factorization.

656203465112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14304 (or 14300 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

Adding to 656203465112 its reverse (211564302656), we get a palindrome (867767767768).

The spelling of 656203465112 in words is "six hundred fifty-six billion, two hundred three million, four hundred sixty-five thousand, one hundred twelve".