11654766065 has 8 divisors (see below), whose sum is σ = 14467985640. Its totient is φ = 9002301952.

The previous prime is 11654766059. The next prime is 11654766073. The reversal of 11654766065 is 56066745611.

It can be written as a sum of positive squares in 4 ways, for example, as 1518505024 + 10136261041 = 38968^2 + 100679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11654766065 - 2¹⁰ = 11654765041 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40188704 + ... + 40188993.

It is an arithmetic number, because the mean of its divisors is an integer number (1808498205).

Almost surely, 2^11654766065 is an apocalyptic number.

It is an amenable number.

11654766065 is a deficient number, since it is larger than the sum of its proper divisors (2813219575).

11654766065 is an equidigital number, since it uses as much as digits as its factorization.

11654766065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80377731.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 11654766065 in words is "eleven billion, six hundred fifty-four million, seven hundred sixty-six thousand, sixty-five".