10000665000065 has 16 divisors (see below), whose sum is σ = 12415108477392. Its totient is φ = 7727481667584.

The previous prime is 10000665000013. The next prime is 10000665000187. The reversal of 10000665000065 is 56000056600001.

It can be written as a sum of positive squares in 8 ways, for example, as 113866428481 + 9886798571584 = 337441^2 + 3144328^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000665000065 - 2¹⁰ = 10000664999041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197265344 + ... + 197316033.

It is an arithmetic number, because the mean of its divisors is an integer number (775944279837).

Almost surely, 2^{10000665000065} is an apocalyptic number.

It is an amenable number.

10000665000065 is a deficient number, since it is larger than the sum of its proper divisors (2414443477327).

10000665000065 is a wasteful number, since it uses less digits than its factorization.

10000665000065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394581556.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 10000665000065 in words is "ten trillion, six hundred sixty-five million, sixty-five", and thus it is an aban number.