161648033201 has 2 divisors, whose sum is σ = 161648033202. Its totient is φ = 161648033200.

The previous prime is 161648033189. The next prime is 161648033213. The reversal of 161648033201 is 102330846161.

It is a balanced prime because it is at equal distance from previous prime (161648033189) and next prime (161648033213).

It can be written as a sum of positive squares in only one way, i.e., 145141950625 + 16506082576 = 380975^2 + 128476^2 .

It is a cyclic number.

It is not a de Polignac number, because 161648033201 - 2³⁴ = 144468164017 is a prime.

It is a super-2 number, since 2×161648033201² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (161648033101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80824016600 + 80824016601.

It is an arithmetic number, because the mean of its divisors is an integer number (80824016601).

Almost surely, 2^161648033201 is an apocalyptic number.

It is an amenable number.

161648033201 is a deficient number, since it is larger than the sum of its proper divisors (1).

161648033201 is an equidigital number, since it uses as much as digits as its factorization.

161648033201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

Adding to 161648033201 its reverse (102330846161), we get a palindrome (263978879362).

The spelling of 161648033201 in words is "one hundred sixty-one billion, six hundred forty-eight million, thirty-three thousand, two hundred one".