616716856 has 32 divisors (see below), whose sum is σ = 1323786240. Its totient is φ = 263857248.

The previous prime is 616716847. The next prime is 616716869. The reversal of 616716856 is 658617616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24921 + ... + 43063.

It is an arithmetic number, because the mean of its divisors is an integer number (41368320).

Almost surely, 2^616716856 is an apocalyptic number.

It is an amenable number.

616716856 is an abundant number, since it is smaller than the sum of its proper divisors (707069384).

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

616716856 is a wasteful number, since it uses less digits than its factorization.

616716856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18763 (or 18759 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 616716856 is about 24833.7845686073. The cubic root of 616716856 is about 851.1941030211.

The spelling of 616716856 in words is "six hundred sixteen million, seven hundred sixteen thousand, eight hundred fifty-six".