12633602556005 has 4 divisors (see below), whose sum is σ = 15160323067212. Its totient is φ = 10106882044800.

The previous prime is 12633602555953. The next prime is 12633602556007. The reversal of 12633602556005 is 50065520633621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6554818616644 + 6078783939361 = 2560238^2 + 2465519^2 .

It is not a de Polignac number, because 12633602556005 - 2⁶ = 12633602555941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12633602556007) 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 3 ways as a sum of consecutive naturals, for example, 1263360255596 + ... + 1263360255605.

It is an arithmetic number, because the mean of its divisors is an integer number (3790080766803).

Almost surely, 2^{12633602556005} is an apocalyptic number.

It is an amenable number.

12633602556005 is a deficient number, since it is larger than the sum of its proper divisors (2526720511207).

12633602556005 is an equidigital number, since it uses as much as digits as its factorization.

12633602556005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526720511206.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 12633602556005 in words is "twelve trillion, six hundred thirty-three billion, six hundred two million, five hundred fifty-six thousand, five".