20036718716867 has 16 divisors (see below), whose sum is σ = 21304085892000. Its totient is φ = 18843597817344.

The previous prime is 20036718716821. The next prime is 20036718716897. The reversal of 20036718716867 is 76861781763002.

It is not a de Polignac number, because 20036718716867 - 2¹⁰ = 20036718715843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20036718716897) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9721742 + ... + 11601107.

It is an arithmetic number, because the mean of its divisors is an integer number (1331505368250).

Almost surely, 2^{20036718716867} is an apocalyptic number.

20036718716867 is a deficient number, since it is larger than the sum of its proper divisors (1267367175133).

20036718716867 is an equidigital number, since it uses as much as digits as its factorization.

20036718716867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323043 (or 21323005 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 20036718716867 in words is "twenty trillion, thirty-six billion, seven hundred eighteen million, seven hundred sixteen thousand, eight hundred sixty-seven".