73195601161 has 2 divisors, whose sum is σ = 73195601162. Its totient is φ = 73195601160.

The previous prime is 73195601147. The next prime is 73195601177. The reversal of 73195601161 is 16110659137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72983724025 + 211877136 = 270155^2 + 14556^2 .

It is an emirp because it is prime and its reverse (16110659137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73195601161 - 2⁷ = 73195601033 is a prime.

It is not a weakly prime, because it can be changed into another prime (73195601261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36597800580 + 36597800581.

It is an arithmetic number, because the mean of its divisors is an integer number (36597800581).

Almost surely, 2^73195601161 is an apocalyptic number.

It is an amenable number.

73195601161 is a deficient number, since it is larger than the sum of its proper divisors (1).

73195601161 is an equidigital number, since it uses as much as digits as its factorization.

73195601161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 40.

The spelling of 73195601161 in words is "seventy-three billion, one hundred ninety-five million, six hundred one thousand, one hundred sixty-one".