10646886121 has 2 divisors, whose sum is σ = 10646886122. Its totient is φ = 10646886120.

The previous prime is 10646886091. The next prime is 10646886149. The reversal of 10646886121 is 12168864601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9089715600 + 1557170521 = 95340^2 + 39461^2 .

It is a cyclic number.

It is not a de Polignac number, because 10646886121 - 2²⁷ = 10512668393 is a prime.

It is a super-2 number, since 2×10646886121² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10646886521) 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, 5323443060 + 5323443061.

It is an arithmetic number, because the mean of its divisors is an integer number (5323443061).

Almost surely, 2^10646886121 is an apocalyptic number.

It is an amenable number.

10646886121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10646886121 is an equidigital number, since it uses as much as digits as its factorization.

10646886121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 10646886121 in words is "ten billion, six hundred forty-six million, eight hundred eighty-six thousand, one hundred twenty-one".