66585714 has 16 divisors (see below), whose sum is σ = 143415552. Its totient is φ = 20487888.

The previous prime is 66585707. The next prime is 66585731. The reversal of 66585714 is 41758566.

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, 426754 + ... + 426909.

It is an arithmetic number, because the mean of its divisors is an integer number (8963472).

Almost surely, 2^66585714 is an apocalyptic number.

66585714 is an abundant number, since it is smaller than the sum of its proper divisors (76829838).

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

66585714 is a wasteful number, since it uses less digits than its factorization.

66585714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853681.

The product of its digits is 201600, while the sum is 42.

The square root of 66585714 is about 8160.0069852911. The cubic root of 66585714 is about 405.3159430720.

The spelling of 66585714 in words is "sixty-six million, five hundred eighty-five thousand, seven hundred fourteen".