20136636067 has 2 divisors, whose sum is σ = 20136636068. Its totient is φ = 20136636066.

The previous prime is 20136636043. The next prime is 20136636071. The reversal of 20136636067 is 76063663102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20136636067 - 2¹¹ = 20136634019 is a prime.

It is a super-2 number, since 2×20136636067² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20136637067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10068318033 + 10068318034.

It is an arithmetic number, because the mean of its divisors is an integer number (10068318034).

Almost surely, 2^20136636067 is an apocalyptic number.

20136636067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20136636067 is an equidigital number, since it uses as much as digits as its factorization.

20136636067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 20136636067 in words is "twenty billion, one hundred thirty-six million, six hundred thirty-six thousand, sixty-seven".