656204303216 has 80 divisors (see below), whose sum is σ = 1588346696448. Its totient is φ = 255143078400.

The previous prime is 656204303207. The next prime is 656204303233. The reversal of 656204303216 is 612303402656.

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 656204303216.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 62516 + ... + 1147308.

Almost surely, 2^656204303216 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 656204303216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794173348224).

656204303216 is an abundant number, since it is smaller than the sum of its proper divisors (932142393232).

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

656204303216 is a wasteful number, since it uses less digits than its factorization.

656204303216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085310 (or 1085304 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 656204303216 in words is "six hundred fifty-six billion, two hundred four million, three hundred three thousand, two hundred sixteen".