1669133317 has 2 divisors, whose sum is σ = 1669133318. Its totient is φ = 1669133316.

The previous prime is 1669133281. The next prime is 1669133327. The reversal of 1669133317 is 7133319661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1472180161 + 196953156 = 38369^2 + 14034^2 .

It is a cyclic number.

It is not a de Polignac number, because 1669133317 - 2¹⁹ = 1668609029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1669133317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1669133327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 834566658 + 834566659.

It is an arithmetic number, because the mean of its divisors is an integer number (834566659).

Almost surely, 2^1669133317 is an apocalyptic number.

It is an amenable number.

1669133317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1669133317 is an equidigital number, since it uses as much as digits as its factorization.

1669133317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 40.

The square root of 1669133317 is about 40855.0280504126. The cubic root of 1669133317 is about 1186.2157206516.

The spelling of 1669133317 in words is "one billion, six hundred sixty-nine million, one hundred thirty-three thousand, three hundred seventeen".