20434336067 has 2 divisors, whose sum is σ = 20434336068. Its totient is φ = 20434336066.

The previous prime is 20434336037. The next prime is 20434336093. The reversal of 20434336067 is 76063343402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20434336067 - 2¹⁰ = 20434335043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20434336067.

It is not a weakly prime, because it can be changed into another prime (20434336037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217168033 + 10217168034.

It is an arithmetic number, because the mean of its divisors is an integer number (10217168034).

Almost surely, 2^20434336067 is an apocalyptic number.

20434336067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20434336067 is an equidigital number, since it uses as much as digits as its factorization.

20434336067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 38.

Adding to 20434336067 its reverse (76063343402), we get a palindrome (96497679469).

The spelling of 20434336067 in words is "twenty billion, four hundred thirty-four million, three hundred thirty-six thousand, sixty-seven".