1600165566011 has 4 divisors (see below), whose sum is σ = 1607153188800. Its totient is φ = 1593177943224.

The previous prime is 1600165566007. The next prime is 1600165566017. The reversal of 1600165566011 is 1106655610061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1600165566011 - 2² = 1600165566007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1600165566017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3493811051 + ... + 3493811508.

It is an arithmetic number, because the mean of its divisors is an integer number (401788297200).

Almost surely, 2^{1600165566011} is an apocalyptic number.

1600165566011 is a deficient number, since it is larger than the sum of its proper divisors (6987622789).

1600165566011 is an equidigital number, since it uses as much as digits as its factorization.

1600165566011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6987622788.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 1600165566011 in words is "one trillion, six hundred billion, one hundred sixty-five million, five hundred sixty-six thousand, eleven".