2071665304165 has 16 divisors (see below), whose sum is σ = 2564029520640. Its totient is φ = 1606009739200.

The previous prime is 2071665304151. The next prime is 2071665304169. The reversal of 2071665304165 is 5614035661702.

It is a de Polignac number, because none of the positive numbers 2^k-2071665304165 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071665304169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43617835 + ... + 43665304.

It is an arithmetic number, because the mean of its divisors is an integer number (160251845040).

Almost surely, 2^{2071665304165} is an apocalyptic number.

It is an amenable number.

2071665304165 is a deficient number, since it is larger than the sum of its proper divisors (492364216475).

2071665304165 is a wasteful number, since it uses less digits than its factorization.

2071665304165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87283292.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 2071665304165 in words is "two trillion, seventy-one billion, six hundred sixty-five million, three hundred four thousand, one hundred sixty-five".