66084814 has 16 divisors (see below), whose sum is σ = 106142400. Its totient is φ = 30747904.

The previous prime is 66084803. The next prime is 66084817. The reversal of 66084814 is 41848066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66084817) 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, 7894 + ... + 13945.

It is an arithmetic number, because the mean of its divisors is an integer number (6633900).

Almost surely, 2^66084814 is an apocalyptic number.

66084814 is a deficient number, since it is larger than the sum of its proper divisors (40057586).

66084814 is a wasteful number, since it uses less digits than its factorization.

66084814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21947.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 66084814 is about 8129.2566695855. The cubic root of 66084814 is about 404.2970359087.

The spelling of 66084814 in words is "sixty-six million, eighty-four thousand, eight hundred fourteen".