12601603736 has 64 divisors (see below), whose sum is σ = 26034307200. Its totient is φ = 5693925888.

The previous prime is 12601603723. The next prime is 12601603747. The reversal of 12601603736 is 63730610621.

It is a junction number, because it is equal to n+sod(n) for n = 12601603696 and 12601603705.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 326771 + ... + 363293.

It is an arithmetic number, because the mean of its divisors is an integer number (406786050).

Almost surely, 2^12601603736 is an apocalyptic number.

It is an amenable number.

12601603736 is an abundant number, since it is smaller than the sum of its proper divisors (13432703464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12601603736 is a wasteful number, since it uses less digits than its factorization.

12601603736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36648 (or 36644 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 12601603736 in words is "twelve billion, six hundred one million, six hundred three thousand, seven hundred thirty-six".