66685032 has 48 divisors (see below), whose sum is σ = 187299840. Its totient is φ = 22227696.

The previous prime is 66684997. The next prime is 66685039. The reversal of 66685032 is 23058666.

66685032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (66685039) 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 11 ways as a sum of consecutive naturals, for example, 15208 + ... + 19095.

It is an arithmetic number, because the mean of its divisors is an integer number (3902080).

Almost surely, 2^66685032 is an apocalyptic number.

It is an amenable number.

66685032 is an abundant number, since it is smaller than the sum of its proper divisors (120614808).

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

66685032 is a wasteful number, since it uses less digits than its factorization.

66685032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34324 (or 34308 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 66685032 is about 8166.0903742244. The cubic root of 66685032 is about 405.5173635087.

The spelling of 66685032 in words is "sixty-six million, six hundred eighty-five thousand, thirty-two".