11665056611 has 8 divisors (see below), whose sum is σ = 12563741904. Its totient is φ = 10766567520.

The previous prime is 11665056577. The next prime is 11665056643.

11665056611 is nontrivially palindromic in base 10.

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 11665056611 - 2⁶ = 11665056547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11665056691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88805 + ... + 176681.

It is an arithmetic number, because the mean of its divisors is an integer number (1570467738).

Almost surely, 2^11665056611 is an apocalyptic number.

11665056611 is a deficient number, since it is larger than the sum of its proper divisors (898685293).

11665056611 is a wasteful number, since it uses less digits than its factorization.

11665056611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98101.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 11665056611 in words is "eleven billion, six hundred sixty-five million, fifty-six thousand, six hundred eleven".