11664665600165 has 16 divisors (see below), whose sum is σ = 14121700094448. Its totient is φ = 9249000907776.

The previous prime is 11664665600131. The next prime is 11664665600171. The reversal of 11664665600165 is 56100656646611.

It can be written as a sum of positive squares in 8 ways, for example, as 1703426963716 + 9961238636449 = 1305154^2 + 3156143^2 .

It is a cyclic number.

It is not a de Polignac number, because 11664665600165 - 2¹⁰ = 11664665599141 is a prime.

It is a congruent 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, 45998459 + ... + 46251351.

It is an arithmetic number, because the mean of its divisors is an integer number (882606255903).

Almost surely, 2^{11664665600165} is an apocalyptic number.

It is an amenable number.

11664665600165 is a deficient number, since it is larger than the sum of its proper divisors (2457034494283).

11664665600165 is a wasteful number, since it uses less digits than its factorization.

11664665600165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334648.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 11664665600165 in words is "eleven trillion, six hundred sixty-four billion, six hundred sixty-five million, six hundred thousand, one hundred sixty-five".