20327662811 has 2 divisors, whose sum is σ = 20327662812. Its totient is φ = 20327662810.

The previous prime is 20327662801. The next prime is 20327662819. The reversal of 20327662811 is 11826672302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20327662811 is a prime.

It is not a weakly prime, because it can be changed into another prime (20327662819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10163831405 + 10163831406.

It is an arithmetic number, because the mean of its divisors is an integer number (10163831406).

Almost surely, 2^20327662811 is an apocalyptic number.

20327662811 is a deficient number, since it is larger than the sum of its proper divisors (1).

20327662811 is an equidigital number, since it uses as much as digits as its factorization.

20327662811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 20327662811 in words is "twenty billion, three hundred twenty-seven million, six hundred sixty-two thousand, eight hundred eleven".