12667451816603 has 16 divisors (see below), whose sum is σ = 12767224565376. Its totient is φ = 12568042905600.

The previous prime is 12667451816581. The next prime is 12667451816683. The reversal of 12667451816603 is 30661815476621.

It is a cyclic number.

It is not a de Polignac number, because 12667451816603 - 2¹² = 12667451812507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12667451816683) 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, 535315550 + ... + 535339212.

It is an arithmetic number, because the mean of its divisors is an integer number (797951535336).

Almost surely, 2^{12667451816603} is an apocalyptic number.

12667451816603 is a deficient number, since it is larger than the sum of its proper divisors (99772748773).

12667451816603 is a wasteful number, since it uses less digits than its factorization.

12667451816603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31174.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 12667451816603 in words is "twelve trillion, six hundred sixty-seven billion, four hundred fifty-one million, eight hundred sixteen thousand, six hundred three".