616857444680 has 32 divisors (see below), whose sum is σ = 1469572149240. Its totient is φ = 232228684800.

The previous prime is 616857444661. The next prime is 616857444703. The reversal of 616857444680 is 86444758616.

It can be written as a sum of positive squares in 4 ways, for example, as 592552011076 + 24305433604 = 769774^2 + 155902^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453570971 + ... + 453572330.

Almost surely, 2^616857444680 is an apocalyptic number.

It is an amenable number.

616857444680 is an abundant number, since it is smaller than the sum of its proper divisors (852714704560).

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

616857444680 is a wasteful number, since it uses less digits than its factorization.

616857444680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907143329 (or 907143325 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 59.

The spelling of 616857444680 in words is "six hundred sixteen billion, eight hundred fifty-seven million, four hundred forty-four thousand, six hundred eighty".