20201686336127 has 2 divisors, whose sum is σ = 20201686336128. Its totient is φ = 20201686336126.

The previous prime is 20201686336109. The next prime is 20201686336193. The reversal of 20201686336127 is 72163368610202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20201686336127 - 2²⁴ = 20201669558911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201686386127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100843168063 + 10100843168064.

It is an arithmetic number, because the mean of its divisors is an integer number (10100843168064).

Almost surely, 2^{20201686336127} is an apocalyptic number.

20201686336127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201686336127 is an equidigital number, since it uses as much as digits as its factorization.

20201686336127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 20201686336127 in words is "twenty trillion, two hundred one billion, six hundred eighty-six million, three hundred thirty-six thousand, one hundred twenty-seven".