162270165691 has 2 divisors, whose sum is σ = 162270165692. Its totient is φ = 162270165690.

The previous prime is 162270165683. The next prime is 162270165763. The reversal of 162270165691 is 196561072261.

162270165691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162270165691 - 2³ = 162270165683 is a prime.

It is not a weakly prime, because it can be changed into another prime (162270165641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81135082845 + 81135082846.

It is an arithmetic number, because the mean of its divisors is an integer number (81135082846).

Almost surely, 2^162270165691 is an apocalyptic number.

162270165691 is a deficient number, since it is larger than the sum of its proper divisors (1).

162270165691 is an equidigital number, since it uses as much as digits as its factorization.

162270165691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 162270165691 in words is "one hundred sixty-two billion, two hundred seventy million, one hundred sixty-five thousand, six hundred ninety-one".