24545216161 has 2 divisors, whose sum is σ = 24545216162. Its totient is φ = 24545216160.

The previous prime is 24545216123. The next prime is 24545216207. The reversal of 24545216161 is 16161254542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23733251136 + 811965025 = 154056^2 + 28495^2 .

It is a cyclic number.

It is not a de Polignac number, because 24545216161 - 2⁹ = 24545215649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24545216161.

It is not a weakly prime, because it can be changed into another prime (24545246161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12272608080 + 12272608081.

It is an arithmetic number, because the mean of its divisors is an integer number (12272608081).

Almost surely, 2^24545216161 is an apocalyptic number.

It is an amenable number.

24545216161 is a deficient number, since it is larger than the sum of its proper divisors (1).

24545216161 is an equidigital number, since it uses as much as digits as its factorization.

24545216161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 37.

The spelling of 24545216161 in words is "twenty-four billion, five hundred forty-five million, two hundred sixteen thousand, one hundred sixty-one".