665105143603 has 8 divisors (see below), whose sum is σ = 665726736080. Its totient is φ = 664483811040.

The previous prime is 665105143601. The next prime is 665105143639. The reversal of 665105143603 is 306341501566.

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 665105143603 - 2¹ = 665105143601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665105143601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5257093 + ... + 5382121.

It is an arithmetic number, because the mean of its divisors is an integer number (83215842010).

Almost surely, 2^665105143603 is an apocalyptic number.

665105143603 is a deficient number, since it is larger than the sum of its proper divisors (621592477).

665105143603 is a wasteful number, since it uses less digits than its factorization.

665105143603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129957.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 665105143603 in words is "six hundred sixty-five billion, one hundred five million, one hundred forty-three thousand, six hundred three".