11680501613 has 32 divisors (see below), whose sum is σ = 13103161344. Its totient is φ = 10323000000.

The previous prime is 11680501589. The next prime is 11680501643. The reversal of 11680501613 is 31610508611.

It is a cyclic number.

It is not a de Polignac number, because 11680501613 - 2¹⁸ = 11680239469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11680501613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11680501643) 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 31 ways as a sum of consecutive naturals, for example, 37557728 + ... + 37558038.

It is an arithmetic number, because the mean of its divisors is an integer number (409473792).

Almost surely, 2^11680501613 is an apocalyptic number.

It is an amenable number.

11680501613 is a deficient number, since it is larger than the sum of its proper divisors (1422659731).

11680501613 is a wasteful number, since it uses less digits than its factorization.

11680501613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 11680501613 in words is "eleven billion, six hundred eighty million, five hundred one thousand, six hundred thirteen".