20116165137065 has 32 divisors (see below), whose sum is σ = 25126597509120. Its totient is φ = 15451466075136.

The previous prime is 20116165136981. The next prime is 20116165137077. The reversal of 20116165137065 is 56073156161102.

It is a cyclic number.

It is not a de Polignac number, because 20116165137065 - 2²⁸ = 20115896701609 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1886057 + ... + 6617366.

It is an arithmetic number, because the mean of its divisors is an integer number (785206172160).

Almost surely, 2^{20116165137065} is an apocalyptic number.

It is an amenable number.

20116165137065 is a deficient number, since it is larger than the sum of its proper divisors (5010432372055).

20116165137065 is a wasteful number, since it uses less digits than its factorization.

20116165137065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503673.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 20116165137065 in words is "twenty trillion, one hundred sixteen billion, one hundred sixty-five million, one hundred thirty-seven thousand, sixty-five".