66008894 has 8 divisors (see below), whose sum is σ = 113158128. Its totient is φ = 28289520.

The previous prime is 66008879. The next prime is 66008911. The reversal of 66008894 is 49880066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357447 + ... + 2357474.

It is an arithmetic number, because the mean of its divisors is an integer number (14144766).

Almost surely, 2^66008894 is an apocalyptic number.

66008894 is a deficient number, since it is larger than the sum of its proper divisors (47149234).

66008894 is a wasteful number, since it uses less digits than its factorization.

66008894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714930.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 66008894 is about 8124.5857740564. The cubic root of 66008894 is about 404.1421541705.

The spelling of 66008894 in words is "sixty-six million, eight thousand, eight hundred ninety-four".