1669833085 has 16 divisors (see below), whose sum is σ = 2016071856. Its totient is φ = 1327710208.

The previous prime is 1669833083. The next prime is 1669833089. The reversal of 1669833085 is 5803389661.

It can be written as a sum of positive squares in 8 ways, for example, as 6661561 + 1663171524 = 2581^2 + 40782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1669833085 - 2¹ = 1669833083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669833083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714579 + ... + 716911.

It is an arithmetic number, because the mean of its divisors is an integer number (126004491).

Almost surely, 2^1669833085 is an apocalyptic number.

It is an amenable number.

1669833085 is a deficient number, since it is larger than the sum of its proper divisors (346238771).

1669833085 is a wasteful number, since it uses less digits than its factorization.

1669833085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 1669833085 is about 40863.5911906920. The cubic root of 1669833085 is about 1186.3814673140.

The spelling of 1669833085 in words is "one billion, six hundred sixty-nine million, eight hundred thirty-three thousand, eighty-five".