22042446617 has 2 divisors, whose sum is σ = 22042446618. Its totient is φ = 22042446616.

The previous prime is 22042446599. The next prime is 22042446683. The reversal of 22042446617 is 71664424022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21262305856 + 780140761 = 145816^2 + 27931^2 .

It is a cyclic number.

It is not a de Polignac number, because 22042446617 - 2²⁴ = 22025669401 is a prime.

It is not a weakly prime, because it can be changed into another prime (22042443617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11021223308 + 11021223309.

It is an arithmetic number, because the mean of its divisors is an integer number (11021223309).

Almost surely, 2^22042446617 is an apocalyptic number.

It is an amenable number.

22042446617 is a deficient number, since it is larger than the sum of its proper divisors (1).

22042446617 is an equidigital number, since it uses as much as digits as its factorization.

22042446617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 38.

The spelling of 22042446617 in words is "twenty-two billion, forty-two million, four hundred forty-six thousand, six hundred seventeen".