664466592 has 24 divisors (see below), whose sum is σ = 1744225056. Its totient is φ = 221488832.

The previous prime is 664466567. The next prime is 664466597. The reversal of 664466592 is 295664466.

664466592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (664466597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3460668 + ... + 3460859.

It is an arithmetic number, because the mean of its divisors is an integer number (72676044).

Almost surely, 2^664466592 is an apocalyptic number.

It is an amenable number.

664466592 is an abundant number, since it is smaller than the sum of its proper divisors (1079758464).

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

664466592 is a wasteful number, since it uses less digits than its factorization.

664466592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921540 (or 6921532 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 48.

The square root of 664466592 is about 25777.2495041655. The cubic root of 664466592 is about 872.6184345649.

The spelling of 664466592 in words is "six hundred sixty-four million, four hundred sixty-six thousand, five hundred ninety-two".