994724565161 has 2 divisors, whose sum is σ = 994724565162. Its totient is φ = 994724565160.

The previous prime is 994724565143. The next prime is 994724565181. The reversal of 994724565161 is 161565427499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 989229160000 + 5495405161 = 994600^2 + 74131^2 .

It is a cyclic number.

It is not a de Polignac number, because 994724565161 - 2⁶ = 994724565097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 994724565161.

It is not a weakly prime, because it can be changed into another prime (994724565181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497362282580 + 497362282581.

It is an arithmetic number, because the mean of its divisors is an integer number (497362282581).

Almost surely, 2^994724565161 is an apocalyptic number.

It is an amenable number.

994724565161 is a deficient number, since it is larger than the sum of its proper divisors (1).

994724565161 is an equidigital number, since it uses as much as digits as its factorization.

994724565161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 59.

The spelling of 994724565161 in words is "nine hundred ninety-four billion, seven hundred twenty-four million, five hundred sixty-five thousand, one hundred sixty-one".