11156669659 has 2 divisors, whose sum is σ = 11156669660. Its totient is φ = 11156669658.

The previous prime is 11156669647. The next prime is 11156669743. The reversal of 11156669659 is 95696665111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11156669659 - 2¹⁷ = 11156538587 is a prime.

It is not a weakly prime, because it can be changed into another prime (11156649659) 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, 5578334829 + 5578334830.

It is an arithmetic number, because the mean of its divisors is an integer number (5578334830).

Almost surely, 2^11156669659 is an apocalyptic number.

11156669659 is a deficient number, since it is larger than the sum of its proper divisors (1).

11156669659 is an equidigital number, since it uses as much as digits as its factorization.

11156669659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2624400, while the sum is 55.

The spelling of 11156669659 in words is "eleven billion, one hundred fifty-six million, six hundred sixty-nine thousand, six hundred fifty-nine".