11766665757 has 32 divisors (see below), whose sum is σ = 19673303040. Its totient is φ = 6077200320.

The previous prime is 11766665723. The next prime is 11766665783. The reversal of 11766665757 is 75756666711.

11766665757 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 11766665757 - 2⁶ = 11766665693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11766665697 and 11766665706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11766665797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107257 + ... + 187182.

It is an arithmetic number, because the mean of its divisors is an integer number (614790720).

Almost surely, 2^11766665757 is an apocalyptic number.

It is an amenable number.

11766665757 is a deficient number, since it is larger than the sum of its proper divisors (7906637283).

11766665757 is a wasteful number, since it uses less digits than its factorization.

11766665757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294633.

The product of its digits is 11113200, while the sum is 57.

The spelling of 11766665757 in words is "eleven billion, seven hundred sixty-six million, six hundred sixty-five thousand, seven hundred fifty-seven".