6667338894445 has 8 divisors (see below), whose sum is σ = 8151765290136. Its totient is φ = 5233232037696.

The previous prime is 6667338894439. The next prime is 6667338894563. The reversal of 6667338894445 is 5444988337666.

It can be written as a sum of positive squares in 4 ways, for example, as 704897934724 + 5962440959721 = 839582^2 + 2441811^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6667338894445 - 2⁵ = 6667338894413 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 12579884442 + ... + 12579884971.

It is an arithmetic number, because the mean of its divisors is an integer number (1018970661267).

Almost surely, 2^{6667338894445} is an apocalyptic number.

It is an amenable number.

6667338894445 is a deficient number, since it is larger than the sum of its proper divisors (1484426395691).

6667338894445 is a wasteful number, since it uses less digits than its factorization.

6667338894445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25159769471.

The product of its digits is 2508226560, while the sum is 73.

The spelling of 6667338894445 in words is "six trillion, six hundred sixty-seven billion, three hundred thirty-eight million, eight hundred ninety-four thousand, four hundred forty-five".