1669588004 has 48 divisors (see below), whose sum is σ = 3465133056. Its totient is φ = 689018400.

The previous prime is 1669588001. The next prime is 1669588027. The reversal of 1669588004 is 4008859661.

It is a self number, because there is not a number n which added to its sum of digits gives 1669588004.

It is not an unprimeable number, because it can be changed into a prime (1669588001) 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 in 15 ways as a sum of consecutive naturals, for example, 75719 + ... + 95249.

It is an arithmetic number, because the mean of its divisors is an integer number (72190272).

Almost surely, 2^1669588004 is an apocalyptic number.

1669588004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669588004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1732566528).

1669588004 is an abundant number, since it is smaller than the sum of its proper divisors (1795545052).

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

1669588004 is a wasteful number, since it uses less digits than its factorization.

1669588004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19656 (or 19654 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 1669588004 is about 40860.5923109296. The cubic root of 1669588004 is about 1186.3234228333.

The spelling of 1669588004 in words is "one billion, six hundred sixty-nine million, five hundred eighty-eight thousand, four".