669189588 has 24 divisors (see below), whose sum is σ = 1563247392. Its totient is φ = 222805344.

The previous prime is 669189583. The next prime is 669189601. The reversal of 669189588 is 885981966.

669189588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669189583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21270 + ... + 42317.

It is an arithmetic number, because the mean of its divisors is an integer number (65135308).

Almost surely, 2^669189588 is an apocalyptic number.

It is an amenable number.

669189588 is an abundant number, since it is smaller than the sum of its proper divisors (894057804).

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

669189588 is a wasteful number, since it uses less digits than its factorization.

669189588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64471 (or 64469 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 60.

The square root of 669189588 is about 25868.6990009161. The cubic root of 669189588 is about 874.6810649332.

The spelling of 669189588 in words is "six hundred sixty-nine million, one hundred eighty-nine thousand, five hundred eighty-eight".