616516056 has 96 divisors (see below), whose sum is σ = 1854522000. Its totient is φ = 189686016.

The previous prime is 616516051. The next prime is 616516151. The reversal of 616516056 is 650615616.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 616516056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616516051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28060 + ... + 44948.

Almost surely, 2^616516056 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 616516056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (927261000).

616516056 is an abundant number, since it is smaller than the sum of its proper divisors (1238005944).

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

616516056 is a wasteful number, since it uses less digits than its factorization.

616516056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16930 (or 16907 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 616516056 is about 24829.7413599095. The cubic root of 616516056 is about 851.1017114436.

The spelling of 616516056 in words is "six hundred sixteen million, five hundred sixteen thousand, fifty-six".