6666733478078 has 8 divisors (see below), whose sum is σ = 10270373196072. Its totient is φ = 3243275746056.

The previous prime is 6666733478063. The next prime is 6666733478131. The reversal of 6666733478078 is 8708743376666.

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 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, 45045496400 + ... + 45045496547.

It is an arithmetic number, because the mean of its divisors is an integer number (1283796649509).

Almost surely, 2^{6666733478078} is an apocalyptic number.

6666733478078 is a deficient number, since it is larger than the sum of its proper divisors (3603639717994).

6666733478078 is a wasteful number, since it uses less digits than its factorization.

6666733478078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90090992986.

The product of its (nonzero) digits is 1024192512, while the sum is 71.

The spelling of 6666733478078 in words is "six trillion, six hundred sixty-six billion, seven hundred thirty-three million, four hundred seventy-eight thousand, seventy-eight".