10646669447 has 2 divisors, whose sum is σ = 10646669448. Its totient is φ = 10646669446.

The previous prime is 10646669443. The next prime is 10646669471. The reversal of 10646669447 is 74496664601.

10646669447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10646669447 - 2² = 10646669443 is a prime.

It is a super-2 number, since 2×10646669447² (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 (10646669443) 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 as a sum of consecutive naturals, namely, 5323334723 + 5323334724.

It is an arithmetic number, because the mean of its divisors is an integer number (5323334724).

Almost surely, 2^10646669447 is an apocalyptic number.

10646669447 is a deficient number, since it is larger than the sum of its proper divisors (1).

10646669447 is an equidigital number, since it uses as much as digits as its factorization.

10646669447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 10646669447 in words is "ten billion, six hundred forty-six million, six hundred sixty-nine thousand, four hundred forty-seven".