666104534403 has 16 divisors (see below), whose sum is σ = 1107290654976. Its totient is φ = 346028329440.

The previous prime is 666104534351. The next prime is 666104534449. The reversal of 666104534403 is 304435401666.

666104534403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 666104534403 - 2⁹ = 666104533891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666104534483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441784476 + ... + 1441784937.

It is an arithmetic number, because the mean of its divisors is an integer number (69205665936).

Almost surely, 2^666104534403 is an apocalyptic number.

666104534403 is a deficient number, since it is larger than the sum of its proper divisors (441186120573).

666104534403 is a wasteful number, since it uses less digits than its factorization.

666104534403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883569434.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 666104534403 in words is "six hundred sixty-six billion, one hundred four million, five hundred thirty-four thousand, four hundred three".