6666736703403 has 16 divisors (see below), whose sum is σ = 10158963478016. Its totient is φ = 3809516356800.

The previous prime is 6666736703387. The next prime is 6666736703449. The reversal of 6666736703403 is 3043076376666.

It is not a de Polignac number, because 6666736703403 - 2⁴ = 6666736703387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6666736703453) 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, 216298 + ... + 3657903.

It is an arithmetic number, because the mean of its divisors is an integer number (634935217376).

Almost surely, 2^{6666736703403} is an apocalyptic number.

6666736703403 is a deficient number, since it is larger than the sum of its proper divisors (3492226774613).

6666736703403 is a wasteful number, since it uses less digits than its factorization.

6666736703403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956154.

The product of its (nonzero) digits is 41150592, while the sum is 57.

The spelling of 6666736703403 in words is "six trillion, six hundred sixty-six billion, seven hundred thirty-six million, seven hundred three thousand, four hundred three".