11766115601613 has 16 divisors (see below), whose sum is σ = 17435223603840. Its totient is φ = 7842303513792.

The previous prime is 11766115601609. The next prime is 11766115601633. The reversal of 11766115601613 is 31610651166711.

11766115601613 is a `hidden beast` number, since 1 + 1 + 7 + 6 + 61 + 1 + 560 + 16 + 13 = 666.

It is not a de Polignac number, because 11766115601613 - 2² = 11766115601609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11766115601633) 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 15 ways as a sum of consecutive naturals, for example, 49143756 + ... + 49382597.

It is an arithmetic number, because the mean of its divisors is an integer number (1089701475240).

Almost surely, 2^{11766115601613} is an apocalyptic number.

It is an amenable number.

11766115601613 is a deficient number, since it is larger than the sum of its proper divisors (5669108002227).

11766115601613 is an equidigital number, since it uses as much as digits as its factorization.

11766115601613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98530785 (or 98530779 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 11766115601613 in words is "eleven trillion, seven hundred sixty-six billion, one hundred fifteen million, six hundred one thousand, six hundred thirteen".