11655606551 has 2 divisors, whose sum is σ = 11655606552. Its totient is φ = 11655606550.

The previous prime is 11655606533. The next prime is 11655606577. The reversal of 11655606551 is 15560655611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11655606551 - 2¹⁰ = 11655605527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11655606499 and 11655606508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11655606581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5827803275 + 5827803276.

It is an arithmetic number, because the mean of its divisors is an integer number (5827803276).

Almost surely, 2^11655606551 is an apocalyptic number.

11655606551 is a deficient number, since it is larger than the sum of its proper divisors (1).

11655606551 is an equidigital number, since it uses as much as digits as its factorization.

11655606551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 11655606551 in words is "eleven billion, six hundred fifty-five million, six hundred six thousand, five hundred fifty-one".