165510601166011 has 2 divisors, whose sum is σ = 165510601166012. Its totient is φ = 165510601166010.

The previous prime is 165510601166003. The next prime is 165510601166059. The reversal of 165510601166011 is 110661106015561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165510601166011 - 2³ = 165510601166003 is a prime.

It is not a weakly prime, because it can be changed into another prime (165510601166311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82755300583005 + 82755300583006.

It is an arithmetic number, because the mean of its divisors is an integer number (82755300583006).

Almost surely, 2^{165510601166011} is an apocalyptic number.

165510601166011 is a deficient number, since it is larger than the sum of its proper divisors (1).

165510601166011 is an equidigital number, since it uses as much as digits as its factorization.

165510601166011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 40.

The spelling of 165510601166011 in words is "one hundred sixty-five trillion, five hundred ten billion, six hundred one million, one hundred sixty-six thousand, eleven".