64106320 has 40 divisors (see below), whose sum is σ = 157818024. Its totient is φ = 24133632.

The previous prime is 64106293. The next prime is 64106321. The reversal of 64106320 is 2360146.

64106320 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 553536 + 63552784 = 744^2 + 7972^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 64106291 and 64106300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64106321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22209 + ... + 24928.

Almost surely, 2^64106320 is an apocalyptic number.

It is an amenable number.

64106320 is an abundant number, since it is smaller than the sum of its proper divisors (93711704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64106320 is a wasteful number, since it uses less digits than its factorization.

64106320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47167 (or 47161 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 64106320 is about 8006.6422425384. The cubic root of 64106320 is about 400.2213774575.

Adding to 64106320 its reverse (2360146), we get a palindrome (66466466).

The spelling of 64106320 in words is "sixty-four million, one hundred six thousand, three hundred twenty".