162181662101 has 2 divisors, whose sum is σ = 162181662102. Its totient is φ = 162181662100.

The previous prime is 162181662079. The next prime is 162181662109. The reversal of 162181662101 is 101266181261.

162181662101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100742125201 + 61439536900 = 317399^2 + 247870^2 .

It is a cyclic number.

It is not a de Polignac number, because 162181662101 - 2¹⁸ = 162181399957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162181662109) 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, 81090831050 + 81090831051.

It is an arithmetic number, because the mean of its divisors is an integer number (81090831051).

Almost surely, 2^162181662101 is an apocalyptic number.

It is an amenable number.

162181662101 is a deficient number, since it is larger than the sum of its proper divisors (1).

162181662101 is an equidigital number, since it uses as much as digits as its factorization.

162181662101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 162181662101 in words is "one hundred sixty-two billion, one hundred eighty-one million, six hundred sixty-two thousand, one hundred one".