67044664068 has 24 divisors (see below), whose sum is σ = 157231654272. Its totient is φ = 22234777824.

The previous prime is 67044664031. The next prime is 67044664079. The reversal of 67044664068 is 86046644076.

It is a self number, because there is not a number n which added to its sum of digits gives 67044664068.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14177980 + ... + 14182707.

It is an arithmetic number, because the mean of its divisors is an integer number (6551318928).

Almost surely, 2^67044664068 is an apocalyptic number.

It is an amenable number.

67044664068 is an abundant number, since it is smaller than the sum of its proper divisors (90186990204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67044664068 is a wasteful number, since it uses less digits than its factorization.

67044664068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28360891 (or 28360889 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 51.

The spelling of 67044664068 in words is "sixty-seven billion, forty-four million, six hundred sixty-four thousand, sixty-eight".