10415221065 has 24 divisors (see below), whose sum is σ = 18393677640. Its totient is φ = 5449976064.

The previous prime is 10415221027. The next prime is 10415221067. The reversal of 10415221065 is 56012251401.

10415221065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5236403769 + 5178817296 = 72363^2 + 71964^2 .

It is not a de Polignac number, because 10415221065 - 2⁹ = 10415220553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10415221067) 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 23 ways as a sum of consecutive naturals, for example, 2181100 + ... + 2185869.

It is an arithmetic number, because the mean of its divisors is an integer number (766403235).

Almost surely, 2^10415221065 is an apocalyptic number.

10415221065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10415221065 is a deficient number, since it is larger than the sum of its proper divisors (7978456575).

10415221065 is a wasteful number, since it uses less digits than its factorization.

10415221065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367033 (or 4367030 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 10415221065 its reverse (56012251401), we get a palindrome (66427472466).

The spelling of 10415221065 in words is "ten billion, four hundred fifteen million, two hundred twenty-one thousand, sixty-five".