163017122461 has 2 divisors, whose sum is σ = 163017122462. Its totient is φ = 163017122460.

The previous prime is 163017122459. The next prime is 163017122473. The reversal of 163017122461 is 164221710361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159435698436 + 3581424025 = 399294^2 + 59845^2 .

It is a cyclic number.

It is not a de Polignac number, because 163017122461 - 2¹ = 163017122459 is a prime.

Together with 163017122459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163017122161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81508561230 + 81508561231.

It is an arithmetic number, because the mean of its divisors is an integer number (81508561231).

Almost surely, 2^163017122461 is an apocalyptic number.

It is an amenable number.

163017122461 is a deficient number, since it is larger than the sum of its proper divisors (1).

163017122461 is an equidigital number, since it uses as much as digits as its factorization.

163017122461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 163017122461 in words is "one hundred sixty-three billion, seventeen million, one hundred twenty-two thousand, four hundred sixty-one".