9896680518201 has 9 divisors (see below), whose sum is σ = 14295218825199. Its totient is φ = 6597780720336.

The previous prime is 9896680518187. The next prime is 9896680518211. The reversal of 9896680518201 is 1028150866989.

The square root of 9896680518201 is 3145899.

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

9896680518201 is a `hidden beast` number, since 9 + 8 + 96 + 6 + 8 + 0 + 518 + 20 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1014945428025 + 8881735090176 = 1007445^2 + 2980224^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 9896680518201 - 2⁵ = 9896680518169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9896680518211) 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, 8913381 + ... + 9962013.

Almost surely, 2^{9896680518201} is an apocalyptic number.

9896680518201 is the 3145899-th square number.

9896680518201 is the 1572950-th centered octagonal number.

It is an amenable number.

9896680518201 is a deficient number, since it is larger than the sum of its proper divisors (4398538306998).

9896680518201 is an frugal number, since it uses more digits than its factorization.

9896680518201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097272 (or 1048636 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 9896680518201 in words is "nine trillion, eight hundred ninety-six billion, six hundred eighty million, five hundred eighteen thousand, two hundred one".