664107075 has 36 divisors (see below), whose sum is σ = 1193370048. Its totient is φ = 353035200.

The previous prime is 664107049. The next prime is 664107109. The reversal of 664107075 is 570701466.

664107075 is a `hidden beast` number, since 6 + 641 + 0 + 7 + 0 + 7 + 5 = 666.

664107075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 664107075 - 2¹¹ = 664105027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 66670 + ... + 75980.

It is an arithmetic number, because the mean of its divisors is an integer number (33149168).

Almost surely, 2^664107075 is an apocalyptic number.

664107075 is a deficient number, since it is larger than the sum of its proper divisors (529262973).

664107075 is a wasteful number, since it uses less digits than its factorization.

664107075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9644 (or 9636 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 664107075 is about 25770.2750276360. The cubic root of 664107075 is about 872.4610262200.

The spelling of 664107075 in words is "six hundred sixty-four million, one hundred seven thousand, seventy-five".