10655744921 has 2 divisors, whose sum is σ = 10655744922. Its totient is φ = 10655744920.

The previous prime is 10655744849. The next prime is 10655744929. The reversal of 10655744921 is 12944755601.

10655744921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6954726025 + 3701018896 = 83395^2 + 60836^2 .

It is an emirp because it is prime and its reverse (12944755601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10655744921 - 2¹⁰ = 10655743897 is a prime.

It is a super-2 number, since 2×10655744921² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10655744929) 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, 5327872460 + 5327872461.

It is an arithmetic number, because the mean of its divisors is an integer number (5327872461).

Almost surely, 2^10655744921 is an apocalyptic number.

It is an amenable number.

10655744921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10655744921 is an equidigital number, since it uses as much as digits as its factorization.

10655744921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 10655744921 in words is "ten billion, six hundred fifty-five million, seven hundred forty-four thousand, nine hundred twenty-one".