163207820011 has 2 divisors, whose sum is σ = 163207820012. Its totient is φ = 163207820010.

The previous prime is 163207819963. The next prime is 163207820063. The reversal of 163207820011 is 110028702361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163207820011 - 2⁹ = 163207819499 is a prime.

It is not a weakly prime, because it can be changed into another prime (163207820911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81603910005 + 81603910006.

It is an arithmetic number, because the mean of its divisors is an integer number (81603910006).

Almost surely, 2^163207820011 is an apocalyptic number.

163207820011 is a deficient number, since it is larger than the sum of its proper divisors (1).

163207820011 is an equidigital number, since it uses as much as digits as its factorization.

163207820011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 163207820011 in words is "one hundred sixty-three billion, two hundred seven million, eight hundred twenty thousand, eleven".