613242216656 has 80 divisors (see below), whose sum is σ = 1313508680064. Its totient is φ = 275877076992.

The previous prime is 613242216647. The next prime is 613242216677. The reversal of 613242216656 is 656612242316.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11089331 + ... + 11144493.

Almost surely, 2^613242216656 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 613242216656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656754340032).

613242216656 is an abundant number, since it is smaller than the sum of its proper divisors (700266463408).

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

613242216656 is a wasteful number, since it uses less digits than its factorization.

613242216656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56988 (or 56982 counting only the distinct ones).

The product of its digits is 622080, while the sum is 44.

The spelling of 613242216656 in words is "six hundred thirteen billion, two hundred forty-two million, two hundred sixteen thousand, six hundred fifty-six".