163489362461 has 2 divisors, whose sum is σ = 163489362462. Its totient is φ = 163489362460.

The previous prime is 163489362451. The next prime is 163489362551. The reversal of 163489362461 is 164263984361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155448832900 + 8040529561 = 394270^2 + 89669^2 .

It is a cyclic number.

It is not a de Polignac number, because 163489362461 - 2¹⁴ = 163489346077 is a prime.

It is a super-3 number, since 3×163489362461³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163489362451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81744681230 + 81744681231.

It is an arithmetic number, because the mean of its divisors is an integer number (81744681231).

Almost surely, 2^163489362461 is an apocalyptic number.

It is an amenable number.

163489362461 is a deficient number, since it is larger than the sum of its proper divisors (1).

163489362461 is an equidigital number, since it uses as much as digits as its factorization.

163489362461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4478976, while the sum is 53.

The spelling of 163489362461 in words is "one hundred sixty-three billion, four hundred eighty-nine million, three hundred sixty-two thousand, four hundred sixty-one".