66577714 has 16 divisors (see below), whose sum is σ = 114278400. Its totient is φ = 28497024.

The previous prime is 66577711. The next prime is 66577733. The reversal of 66577714 is 41777566.

It is not an unprimeable number, because it can be changed into a prime (66577711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10447 + ... + 15565.

It is an arithmetic number, because the mean of its divisors is an integer number (7142400).

Almost surely, 2^66577714 is an apocalyptic number.

66577714 is a deficient number, since it is larger than the sum of its proper divisors (47700686).

66577714 is a wasteful number, since it uses less digits than its factorization.

66577714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6057.

The product of its digits is 246960, while the sum is 43.

The square root of 66577714 is about 8159.5167749077. The cubic root of 66577714 is about 405.2997100733.

The spelling of 66577714 in words is "sixty-six million, five hundred seventy-seven thousand, seven hundred fourteen".