1669289088 has 128 divisors (see below), whose sum is σ = 4571884800. Its totient is φ = 539320320.

The previous prime is 1669289071. The next prime is 1669289093. The reversal of 1669289088 is 8809829661.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3605145 + ... + 3605607.

It is an arithmetic number, because the mean of its divisors is an integer number (35717850).

Almost surely, 2^1669289088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669289088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2285942400).

1669289088 is an abundant number, since it is smaller than the sum of its proper divisors (2902595712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1669289088 is a wasteful number, since it uses less digits than its factorization.

1669289088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 57.

The square root of 1669289088 is about 40856.9343930746. The cubic root of 1669289088 is about 1186.2526204924.

The spelling of 1669289088 in words is "one billion, six hundred sixty-nine million, two hundred eighty-nine thousand, eighty-eight".