20806533467 has 2 divisors, whose sum is σ = 20806533468. Its totient is φ = 20806533466.

The previous prime is 20806533421. The next prime is 20806533481. The reversal of 20806533467 is 76433560802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20806533467 - 2¹⁰ = 20806532443 is a prime.

It is not a weakly prime, because it can be changed into another prime (20806533967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10403266733 + 10403266734.

It is an arithmetic number, because the mean of its divisors is an integer number (10403266734).

Almost surely, 2^20806533467 is an apocalyptic number.

20806533467 is a deficient number, since it is larger than the sum of its proper divisors (1).

20806533467 is an equidigital number, since it uses as much as digits as its factorization.

20806533467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 20806533467 in words is "twenty billion, eight hundred six million, five hundred thirty-three thousand, four hundred sixty-seven".