162454945181 has 2 divisors, whose sum is σ = 162454945182. Its totient is φ = 162454945180.

The previous prime is 162454945171. The next prime is 162454945253. The reversal of 162454945181 is 181549454261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125663869081 + 36791076100 = 354491^2 + 191810^2 .

It is a cyclic number.

It is not a de Polignac number, because 162454945181 - 2⁶ = 162454945117 is a prime.

It is a super-2 number, since 2×162454945181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162454945171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81227472590 + 81227472591.

It is an arithmetic number, because the mean of its divisors is an integer number (81227472591).

Almost surely, 2^162454945181 is an apocalyptic number.

It is an amenable number.

162454945181 is a deficient number, since it is larger than the sum of its proper divisors (1).

162454945181 is an equidigital number, since it uses as much as digits as its factorization.

162454945181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382400, while the sum is 50.

The spelling of 162454945181 in words is "one hundred sixty-two billion, four hundred fifty-four million, nine hundred forty-five thousand, one hundred eighty-one".