10644165 has 24 divisors (see below), whose sum is σ = 21086208. Its totient is φ = 4865760.

The previous prime is 10644163. The next prime is 10644167. The reversal of 10644165 is 56144601.

10644165 is a `hidden beast` number, since 1 + 0 + 644 + 16 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (10644163) and next prime (10644167).

It is not a de Polignac number, because 10644165 - 2¹ = 10644163 is a prime.

It is a super-2 number, since 2×10644165² = 226596497094450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16581 + ... + 17210.

It is an arithmetic number, because the mean of its divisors is an integer number (878592).

Almost surely, 2^10644165 is an apocalyptic number.

10644165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10644165 is a deficient number, since it is larger than the sum of its proper divisors (10442043).

10644165 is a wasteful number, since it uses less digits than its factorization.

10644165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33809 (or 33806 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 10644165 is about 3262.5396549314. The cubic root of 10644165 is about 219.9735849828.

Adding to 10644165 its reverse (56144601), we get a palindrome (66788766).

The spelling of 10644165 in words is "ten million, six hundred forty-four thousand, one hundred sixty-five".