664524834 has 8 divisors (see below), whose sum is σ = 1329049680. Its totient is φ = 221508276.

The previous prime is 664524823. The next prime is 664524841. The reversal of 664524834 is 438425466.

664524834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

664524834 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55377064 + ... + 55377075.

It is an arithmetic number, because the mean of its divisors is an integer number (166131210).

Almost surely, 2^664524834 is an apocalyptic number.

664524834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

664524834 is a wasteful number, since it uses less digits than its factorization.

664524834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110754144.

The product of its digits is 552960, while the sum is 42.

The square root of 664524834 is about 25778.3791965282. The cubic root of 664524834 is about 872.6439294800.

The spelling of 664524834 in words is "six hundred sixty-four million, five hundred twenty-four thousand, eight hundred thirty-four".