11655506556659 has 8 divisors (see below), whose sum is σ = 13323166990848. Its totient is φ = 9988493139720.

The previous prime is 11655506556619. The next prime is 11655506556691. The reversal of 11655506556659 is 95665560555611.

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 11655506556659 - 2⁸ = 11655506556403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11655506556595 and 11655506556604.

It is not an unprimeable number, because it can be changed into a prime (11655506556619) 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, 161715707 + ... + 161787764.

It is an arithmetic number, because the mean of its divisors is an integer number (1665395873856).

Almost surely, 2^{11655506556659} is an apocalyptic number.

11655506556659 is a deficient number, since it is larger than the sum of its proper divisors (1667660434189).

11655506556659 is an equidigital number, since it uses as much as digits as its factorization.

11655506556659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323508625.

The product of its (nonzero) digits is 182250000, while the sum is 65.

The spelling of 11655506556659 in words is "eleven trillion, six hundred fifty-five billion, five hundred six million, five hundred fifty-six thousand, six hundred fifty-nine".