66888014 has 16 divisors (see below), whose sum is σ = 102604320. Its totient is φ = 32691360.

The previous prime is 66888011. The next prime is 66888053. The reversal of 66888014 is 41088866.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66888011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31952 + ... + 33980.

It is an arithmetic number, because the mean of its divisors is an integer number (6412770).

Almost surely, 2^66888014 is an apocalyptic number.

66888014 is a deficient number, since it is larger than the sum of its proper divisors (35716306).

66888014 is a wasteful number, since it uses less digits than its factorization.

66888014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 66888014 is about 8178.5092773683. The cubic root of 66888014 is about 405.9283970243.

The spelling of 66888014 in words is "sixty-six million, eight hundred eighty-eight thousand, fourteen".