9618200161 has 2 divisors, whose sum is σ = 9618200162. Its totient is φ = 9618200160.

The previous prime is 9618200153. The next prime is 9618200167. The reversal of 9618200161 is 1610028169.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5681390625 + 3936809536 = 75375^2 + 62744^2 .

It is an emirp because it is prime and its reverse (1610028169) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9618200161 - 2³ = 9618200153 is a prime.

It is not a weakly prime, because it can be changed into another prime (9618200167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4809100080 + 4809100081.

It is an arithmetic number, because the mean of its divisors is an integer number (4809100081).

Almost surely, 2^9618200161 is an apocalyptic number.

It is an amenable number.

9618200161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9618200161 is an equidigital number, since it uses as much as digits as its factorization.

9618200161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 9618200161 is about 98072.4230403226. The cubic root of 9618200161 is about 2126.6593847290.

The spelling of 9618200161 in words is "nine billion, six hundred eighteen million, two hundred thousand, one hundred sixty-one".