4456561616 has 20 divisors (see below), whose sum is σ = 9298787652. Its totient is φ = 2056874496.

The previous prime is 4456561601. The next prime is 4456561621. The reversal of 4456561616 is 6161656544.

It can be written as a sum of positive squares in 2 ways, for example, as 2180890000 + 2275671616 = 46700^2 + 47704^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10712681 + ... + 10713096.

Almost surely, 2^4456561616 is an apocalyptic number.

It is an amenable number.

4456561616 is an abundant number, since it is smaller than the sum of its proper divisors (4842226036).

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

4456561616 is a wasteful number, since it uses less digits than its factorization.

4456561616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21425798 (or 21425792 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The square root of 4456561616 is about 66757.4835954741. The cubic root of 4456561616 is about 1645.6342027910.

The spelling of 4456561616 in words is "four billion, four hundred fifty-six million, five hundred sixty-one thousand, six hundred sixteen".