11660365551365 has 8 divisors (see below), whose sum is σ = 13992497275680. Its totient is φ = 9328253365072.

The previous prime is 11660365551361. The next prime is 11660365551391. The reversal of 11660365551365 is 56315556306611.

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 11660365551365 - 2² = 11660365551361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660365551361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3537779 + ... + 5986368.

It is an arithmetic number, because the mean of its divisors is an integer number (1749062159460).

Almost surely, 2^{11660365551365} is an apocalyptic number.

It is an amenable number.

11660365551365 is a deficient number, since it is larger than the sum of its proper divisors (2332131724315).

11660365551365 is an equidigital number, since it uses as much as digits as its factorization.

11660365551365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9769011.

The product of its (nonzero) digits is 7290000, while the sum is 53.

The spelling of 11660365551365 in words is "eleven trillion, six hundred sixty billion, three hundred sixty-five million, five hundred fifty-one thousand, three hundred sixty-five".