163322250505181 has 2 divisors, whose sum is σ = 163322250505182. Its totient is φ = 163322250505180.

The previous prime is 163322250505151. The next prime is 163322250505201. The reversal of 163322250505181 is 181505052223361.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114996326165956 + 48325924339225 = 10723634^2 + 6951685^2 .

It is a cyclic number.

It is not a de Polignac number, because 163322250505181 - 2¹⁸ = 163322250243037 is a prime.

It is a super-2 number, since 2×163322250505181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163322250505151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81661125252590 + 81661125252591.

It is an arithmetic number, because the mean of its divisors is an integer number (81661125252591).

Almost surely, 2^{163322250505181} is an apocalyptic number.

It is an amenable number.

163322250505181 is a deficient number, since it is larger than the sum of its proper divisors (1).

163322250505181 is an equidigital number, since it uses as much as digits as its factorization.

163322250505181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 163322250505181 in words is "one hundred sixty-three trillion, three hundred twenty-two billion, two hundred fifty million, five hundred five thousand, one hundred eighty-one".