1650665041 has 2 divisors, whose sum is σ = 1650665042. Its totient is φ = 1650665040.

The previous prime is 1650664999. The next prime is 1650665057. The reversal of 1650665041 is 1405660561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980942400 + 669722641 = 31320^2 + 25879^2 .

It is a cyclic number.

It is not a de Polignac number, because 1650665041 - 2¹³ = 1650656849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1650664988 and 1650665006.

It is not a weakly prime, because it can be changed into another prime (1650665441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825332520 + 825332521.

It is an arithmetic number, because the mean of its divisors is an integer number (825332521).

Almost surely, 2^1650665041 is an apocalyptic number.

It is an amenable number.

1650665041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650665041 is an equidigital number, since it uses as much as digits as its factorization.

1650665041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1650665041 is about 40628.3772873099. The cubic root of 1650665041 is about 1181.8244879655.

The spelling of 1650665041 in words is "one billion, six hundred fifty million, six hundred sixty-five thousand, forty-one".