616328856 has 192 divisors, whose sum is σ = 2025354240. Its totient is φ = 166752000.

The previous prime is 616328833. The next prime is 616328893. The reversal of 616328856 is 658823616.

616328856 is a `hidden beast` number, since 6 + 1 + 632 + 8 + 8 + 5 + 6 = 666.

616328856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×616328856² = 759722517476537472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318211 + ... + 320141.

It is an arithmetic number, because the mean of its divisors is an integer number (10548720).

Almost surely, 2^616328856 is an apocalyptic number.

616328856 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616328856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1012677120).

616328856 is an abundant number, since it is smaller than the sum of its proper divisors (1409025384).

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

616328856 is a wasteful number, since it uses less digits than its factorization.

616328856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998 (or 1991 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 616328856 is about 24825.9714009341. The cubic root of 616328856 is about 851.0155593921.

The spelling of 616328856 in words is "six hundred sixteen million, three hundred twenty-eight thousand, eight hundred fifty-six".