11681651108617 has 12 divisors (see below), whose sum is σ = 13629913427856. Its totient is φ = 9982593510120.

The previous prime is 11681651108573. The next prime is 11681651108629. The reversal of 11681651108617 is 71680115618611.

11681651108617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11681651108617 - 2⁷ = 11681651108489 is a prime.

It is a super-3 number, since 3×11681651108617³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11681651108657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 360106203 + ... + 360138640.

It is an arithmetic number, because the mean of its divisors is an integer number (1135826118988).

Almost surely, 2^{11681651108617} is an apocalyptic number.

It is an amenable number.

11681651108617 is a deficient number, since it is larger than the sum of its proper divisors (1948262319239).

11681651108617 is an equidigital number, since it uses as much as digits as its factorization.

11681651108617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720245188 (or 720245181 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 52.

The spelling of 11681651108617 in words is "eleven trillion, six hundred eighty-one billion, six hundred fifty-one million, one hundred eight thousand, six hundred seventeen".