664546234 has 16 divisors (see below), whose sum is σ = 1088549280. Its totient is φ = 301758160.

The previous prime is 664546213. The next prime is 664546241. The reversal of 664546234 is 432645466.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7377 + ... + 37195.

It is an arithmetic number, because the mean of its divisors is an integer number (68034330).

Almost surely, 2^664546234 is an apocalyptic number.

664546234 is a deficient number, since it is larger than the sum of its proper divisors (424003046).

664546234 is a wasteful number, since it uses less digits than its factorization.

664546234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30845.

The product of its digits is 414720, while the sum is 40.

The square root of 664546234 is about 25778.7942697094. The cubic root of 664546234 is about 872.6532967646.

The spelling of 664546234 in words is "six hundred sixty-four million, five hundred forty-six thousand, two hundred thirty-four".