20320064467 has 2 divisors, whose sum is σ = 20320064468. Its totient is φ = 20320064466.

The previous prime is 20320064417. The next prime is 20320064533. The reversal of 20320064467 is 76446002302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20320064467 is a prime.

It is not a weakly prime, because it can be changed into another prime (20320064417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160032233 + 10160032234.

It is an arithmetic number, because the mean of its divisors is an integer number (10160032234).

Almost surely, 2^20320064467 is an apocalyptic number.

20320064467 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320064467 is an equidigital number, since it uses as much as digits as its factorization.

20320064467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 34.

Adding to 20320064467 its reverse (76446002302), we get a palindrome (96766066769).

The spelling of 20320064467 in words is "twenty billion, three hundred twenty million, sixty-four thousand, four hundred sixty-seven".