66940682014 has 8 divisors (see below), whose sum is σ = 103124834568. Its totient is φ = 32565737160.

The previous prime is 66940681981. The next prime is 66940682041. The reversal of 66940682014 is 41028604966.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452301832 + ... + 452301979.

It is an arithmetic number, because the mean of its divisors is an integer number (12890604321).

Almost surely, 2^66940682014 is an apocalyptic number.

66940682014 is a deficient number, since it is larger than the sum of its proper divisors (36184152554).

66940682014 is a wasteful number, since it uses less digits than its factorization.

66940682014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904603850.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 66940682014 in words is "sixty-six billion, nine hundred forty million, six hundred eighty-two thousand, fourteen".