66869032 has 16 divisors (see below), whose sum is σ = 128438100. Its totient is φ = 32618880.

The previous prime is 66869021. The next prime is 66869039. The reversal of 66869032 is 23096866.

It can be written as a sum of positive squares in 2 ways, for example, as 66814276 + 54756 = 8174^2 + 234^2 .

It is not an unprimeable number, because it can be changed into a prime (66869039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101607 + ... + 102262.

Almost surely, 2^66869032 is an apocalyptic number.

It is an amenable number.

66869032 is a deficient number, since it is larger than the sum of its proper divisors (61569068).

66869032 is a wasteful number, since it uses less digits than its factorization.

66869032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203916 (or 203912 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 66869032 is about 8177.3487145896. The cubic root of 66869032 is about 405.8899942205.

The spelling of 66869032 in words is "sixty-six million, eight hundred sixty-nine thousand, thirty-two".