12635105503 has 8 divisors (see below), whose sum is σ = 12718459008. Its totient is φ = 12551788704.

The previous prime is 12635105489. The next prime is 12635105531. The reversal of 12635105503 is 30550153621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12635105503 - 2⁹ = 12635104991 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 (12635105563) 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 7 ways as a sum of consecutive naturals, for example, 1185225 + ... + 1195837.

It is an arithmetic number, because the mean of its divisors is an integer number (1589807376).

Almost surely, 2^12635105503 is an apocalyptic number.

12635105503 is a deficient number, since it is larger than the sum of its proper divisors (83353505).

12635105503 is a wasteful number, since it uses less digits than its factorization.

12635105503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18353.

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 12635105503 in words is "twelve billion, six hundred thirty-five million, one hundred five thousand, five hundred three".