66654843014 has 4 divisors (see below), whose sum is σ = 99982264524. Its totient is φ = 33327421506.

The previous prime is 66654843011. The next prime is 66654843043. The reversal of 66654843014 is 41034845666.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66654843014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66654843011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16663710752 + ... + 16663710755.

It is an arithmetic number, because the mean of its divisors is an integer number (24995566131).

Almost surely, 2^66654843014 is an apocalyptic number.

66654843014 is a deficient number, since it is larger than the sum of its proper divisors (33327421510).

66654843014 is a wasteful number, since it uses less digits than its factorization.

66654843014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33327421509.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 66654843014 in words is "sixty-six billion, six hundred fifty-four million, eight hundred forty-three thousand, fourteen".