11061644669 has 2 divisors, whose sum is σ = 11061644670. Its totient is φ = 11061644668.

The previous prime is 11061644663. The next prime is 11061644717. The reversal of 11061644669 is 96644616011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10279323769 + 782320900 = 101387^2 + 27970^2 .

It is an emirp because it is prime and its reverse (96644616011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11061644669 - 2²⁰ = 11060596093 is a prime.

It is a super-2 number, since 2×11061644669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11061644663) 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, 5530822334 + 5530822335.

It is an arithmetic number, because the mean of its divisors is an integer number (5530822335).

Almost surely, 2^11061644669 is an apocalyptic number.

It is an amenable number.

11061644669 is a deficient number, since it is larger than the sum of its proper divisors (1).

11061644669 is an equidigital number, since it uses as much as digits as its factorization.

11061644669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 11061644669 in words is "eleven billion, sixty-one million, six hundred forty-four thousand, six hundred sixty-nine".