10266121771 has 4 divisors (see below), whose sum is σ = 10620126000. Its totient is φ = 9912117544.

The previous prime is 10266121759. The next prime is 10266121793. The reversal of 10266121771 is 17712166201.

10266121771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10266121771 - 2¹¹ = 10266119723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10266121751) 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 3 ways as a sum of consecutive naturals, for example, 177002071 + ... + 177002128.

It is an arithmetic number, because the mean of its divisors is an integer number (2655031500).

Almost surely, 2^10266121771 is an apocalyptic number.

10266121771 is a deficient number, since it is larger than the sum of its proper divisors (354004229).

10266121771 is an equidigital number, since it uses as much as digits as its factorization.

10266121771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354004228.

The product of its (nonzero) digits is 7056, while the sum is 34.

Adding to 10266121771 its reverse (17712166201), we get a palindrome (27978287972).

The spelling of 10266121771 in words is "ten billion, two hundred sixty-six million, one hundred twenty-one thousand, seven hundred seventy-one".