20185536127 has 2 divisors, whose sum is σ = 20185536128. Its totient is φ = 20185536126.

The previous prime is 20185536079. The next prime is 20185536149. The reversal of 20185536127 is 72163558102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20185536127 - 2²³ = 20177147519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20185536127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20185536227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10092768063 + 10092768064.

It is an arithmetic number, because the mean of its divisors is an integer number (10092768064).

Almost surely, 2^20185536127 is an apocalyptic number.

20185536127 is a deficient number, since it is larger than the sum of its proper divisors (1).

20185536127 is an equidigital number, since it uses as much as digits as its factorization.

20185536127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 20185536127 in words is "twenty billion, one hundred eighty-five million, five hundred thirty-six thousand, one hundred twenty-seven".