9663555607876 has 27 divisors (see below), whose sum is σ = 17514803166679. Its totient is φ = 4665077734688.

The previous prime is 9663555607873. The next prime is 9663555607883. The reversal of 9663555607876 is 6787065553669.

The square root of 9663555607876 is 3108626.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2344236588100 + 7319319019776 = 1531090^2 + 2705424^2 .

It is a super-3 number, since 3×9663555607876³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9663555607799 and 9663555607808.

It is not an unprimeable number, because it can be changed into a prime (9663555607873) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 180273510 + ... + 180327106.

Almost surely, 2^{9663555607876} is an apocalyptic number.

9663555607876 is the 3108626-th square number.

It is an amenable number.

9663555607876 is a deficient number, since it is larger than the sum of its proper divisors (7851247558803).

9663555607876 is an frugal number, since it uses more digits than its factorization.

9663555607876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107256 (or 53628 counting only the distinct ones).

The product of its (nonzero) digits is 1714608000, while the sum is 73.

The spelling of 9663555607876 in words is "nine trillion, six hundred sixty-three billion, five hundred fifty-five million, six hundred seven thousand, eight hundred seventy-six".