163513734161 has 2 divisors, whose sum is σ = 163513734162. Its totient is φ = 163513734160.

The previous prime is 163513734151. The next prime is 163513734169. The reversal of 163513734161 is 161437315361.

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., 99150044161 + 64363690000 = 314881^2 + 253700^2 .

It is a cyclic number.

It is not a de Polignac number, because 163513734161 - 2¹⁰ = 163513733137 is a prime.

It is not a weakly prime, because it can be changed into another prime (163513734169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81756867080 + 81756867081.

It is an arithmetic number, because the mean of its divisors is an integer number (81756867081).

Almost surely, 2^163513734161 is an apocalyptic number.

It is an amenable number.

163513734161 is a deficient number, since it is larger than the sum of its proper divisors (1).

163513734161 is an equidigital number, since it uses as much as digits as its factorization.

163513734161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The spelling of 163513734161 in words is "one hundred sixty-three billion, five hundred thirteen million, seven hundred thirty-four thousand, one hundred sixty-one".