10644667009 has 8 divisors (see below), whose sum is σ = 10899156960. Its totient is φ = 10392989376.

The previous prime is 10644667003. The next prime is 10644667021. The reversal of 10644667009 is 90076644601.

10644667009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10644667009 - 2³ = 10644667001 is a prime.

It is a super-2 number, since 2×10644667009² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10644667001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695419 + ... + 710560.

It is an arithmetic number, because the mean of its divisors is an integer number (1362394620).

Almost surely, 2^10644667009 is an apocalyptic number.

It is an amenable number.

10644667009 is a deficient number, since it is larger than the sum of its proper divisors (254489951).

10644667009 is a wasteful number, since it uses less digits than its factorization.

10644667009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406159.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 10644667009 in words is "ten billion, six hundred forty-four million, six hundred sixty-seven thousand, nine".