1605422606057 has 2 divisors, whose sum is σ = 1605422606058. Its totient is φ = 1605422606056.

The previous prime is 1605422606017. The next prime is 1605422606111. The reversal of 1605422606057 is 7506062245061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1523617453801 + 81805152256 = 1234349^2 + 286016^2 .

It is a cyclic number.

It is not a de Polignac number, because 1605422606057 - 2⁶ = 1605422605993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1605422605999 and 1605422606017.

It is not a weakly prime, because it can be changed into another prime (1605422606017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802711303028 + 802711303029.

It is an arithmetic number, because the mean of its divisors is an integer number (802711303029).

Almost surely, 2^{1605422606057} is an apocalyptic number.

It is an amenable number.

1605422606057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605422606057 is an equidigital number, since it uses as much as digits as its factorization.

1605422606057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 1605422606057 in words is "one trillion, six hundred five billion, four hundred twenty-two million, six hundred six thousand, fifty-seven".