66385104 has 40 divisors (see below), whose sum is σ = 176134560. Its totient is φ = 21529728.

The previous prime is 66385087. The next prime is 66385129. The reversal of 66385104 is 40158366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16914 + ... + 20465.

It is an arithmetic number, because the mean of its divisors is an integer number (4403364).

Almost surely, 2^66385104 is an apocalyptic number.

It is an amenable number.

66385104 is an abundant number, since it is smaller than the sum of its proper divisors (109749456).

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

66385104 is a wasteful number, since it uses less digits than its factorization.

66385104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37427 (or 37421 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 66385104 is about 8147.7054438658. The cubic root of 66385104 is about 404.9084871730.

The spelling of 66385104 in words is "sixty-six million, three hundred eighty-five thousand, one hundred four".