6667044040478 has 16 divisors (see below), whose sum is σ = 10527160002000. Its totient is φ = 3157998985152.

The previous prime is 6667044040477. The next prime is 6667044040493. The reversal of 6667044040478 is 8740404407666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6667044040477) 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, 420743 + ... + 3675746.

It is an arithmetic number, because the mean of its divisors is an integer number (657947500125).

Almost surely, 2^{6667044040478} is an apocalyptic number.

6667044040478 is a deficient number, since it is larger than the sum of its proper divisors (3860115961522).

6667044040478 is a wasteful number, since it uses less digits than its factorization.

6667044040478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139339.

The product of its (nonzero) digits is 21676032, while the sum is 56.

The spelling of 6667044040478 in words is "six trillion, six hundred sixty-seven billion, forty-four million, forty thousand, four hundred seventy-eight".