6671210042405 has 8 divisors (see below), whose sum is σ = 8033941205784. Its totient is φ = 5317975264000.

The previous prime is 6671210042383. The next prime is 6671210042449. The reversal of 6671210042405 is 5042400121766.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1148907440641 + 5522302601764 = 1071871^2 + 2349958^2 .

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

It is not a de Polignac number, because 6671210042405 - 2¹² = 6671210038309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374094696 + ... + 2374097505.

It is an arithmetic number, because the mean of its divisors is an integer number (1004242650723).

Almost surely, 2^{6671210042405} is an apocalyptic number.

It is an amenable number.

6671210042405 is a deficient number, since it is larger than the sum of its proper divisors (1362731163379).

6671210042405 is a wasteful number, since it uses less digits than its factorization.

6671210042405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748192487.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 6671210042405 in words is "six trillion, six hundred seventy-one billion, two hundred ten million, forty-two thousand, four hundred five".