12611505336 has 16 divisors (see below), whose sum is σ = 31528763400. Its totient is φ = 4203835104.

The previous prime is 12611505317. The next prime is 12611505349. The reversal of 12611505336 is 63350511621.

It is a junction number, because it is equal to n+sod(n) for n = 12611505297 and 12611505306.

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 3 ways as a sum of consecutive naturals, for example, 262739671 + ... + 262739718.

Almost surely, 2^12611505336 is an apocalyptic number.

It is an amenable number.

12611505336 is an abundant number, since it is smaller than the sum of its proper divisors (18917258064).

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

12611505336 is a wasteful number, since it uses less digits than its factorization.

12611505336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525479398 (or 525479394 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 12611505336 in words is "twelve billion, six hundred eleven million, five hundred five thousand, three hundred thirty-six".