1966910005 has 8 divisors (see below), whose sum is σ = 2390169600. Its totient is φ = 1553609616.

The previous prime is 1966909993. The next prime is 1966910009. The reversal of 1966910005 is 5000196691.

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 1966910005 - 2¹⁹ = 1966385717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966910009) by changing a digit.

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, 2489365 + ... + 2490154.

It is an arithmetic number, because the mean of its divisors is an integer number (298771200).

Almost surely, 2^1966910005 is an apocalyptic number.

It is an amenable number.

1966910005 is a deficient number, since it is larger than the sum of its proper divisors (423259595).

1966910005 is an equidigital number, since it uses as much as digits as its factorization.

1966910005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979603.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 1966910005 is about 44349.8591316816. The cubic root of 1966910005 is about 1252.9339094194.

The spelling of 1966910005 in words is "one billion, nine hundred sixty-six million, nine hundred ten thousand, five".