666160475603 has 16 divisors (see below), whose sum is σ = 777144388800. Its totient is φ = 570788261568.

The previous prime is 666160475587. The next prime is 666160475611. The reversal of 666160475603 is 306574061666.

It is a happy number.

It is not a de Polignac number, because 666160475603 - 2⁴ = 666160475587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666160475633) 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 in 15 ways as a sum of consecutive naturals, for example, 602825 + ... + 1302197.

It is an arithmetic number, because the mean of its divisors is an integer number (48571524300).

Almost surely, 2^666160475603 is an apocalyptic number.

666160475603 is a deficient number, since it is larger than the sum of its proper divisors (110983913197).

666160475603 is an equidigital number, since it uses as much as digits as its factorization.

666160475603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702171 (or 702157 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 666160475603 in words is "six hundred sixty-six billion, one hundred sixty million, four hundred seventy-five thousand, six hundred three".