6662173801379 has 2 divisors, whose sum is σ = 6662173801380. Its totient is φ = 6662173801378.

The previous prime is 6662173801351. The next prime is 6662173801421. The reversal of 6662173801379 is 9731083712666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6662173801379 - 2⁴⁰ = 5562662173603 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6662173801079) by changing a digit.

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 as a sum of consecutive naturals, namely, 3331086900689 + 3331086900690.

It is an arithmetic number, because the mean of its divisors is an integer number (3331086900690).

Almost surely, 2^{6662173801379} is an apocalyptic number.

6662173801379 is a deficient number, since it is larger than the sum of its proper divisors (1).

6662173801379 is an equidigital number, since it uses as much as digits as its factorization.

6662173801379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13716864, while the sum is 59.

The spelling of 6662173801379 in words is "six trillion, six hundred sixty-two billion, one hundred seventy-three million, eight hundred one thousand, three hundred seventy-nine".