11665010761 has 4 divisors (see below), whose sum is σ = 11668580224. Its totient is φ = 11661441300.

The previous prime is 11665010741. The next prime is 11665010767. The reversal of 11665010761 is 16701056611.

11665010761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16701056611 = 181 ⋅92271031.

It is a cyclic number.

It is not a de Polignac number, because 11665010761 - 2⁷ = 11665010633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11665010767) 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 3 ways as a sum of consecutive naturals, for example, 1779825 + ... + 1786366.

It is an arithmetic number, because the mean of its divisors is an integer number (2917145056).

Almost surely, 2^11665010761 is an apocalyptic number.

It is an amenable number.

11665010761 is a deficient number, since it is larger than the sum of its proper divisors (3569463).

11665010761 is an equidigital number, since it uses as much as digits as its factorization.

11665010761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569462.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 11665010761 in words is "eleven billion, six hundred sixty-five million, ten thousand, seven hundred sixty-one".