664306104 has 256 divisors, whose sum is σ = 2159861760. Its totient is φ = 165312000.

The previous prime is 664306091. The next prime is 664306117. The reversal of 664306104 is 401603466.

It is an interprime number because it is at equal distance from previous prime (664306091) and next prime (664306117).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 8003647 + ... + 8003729.

It is an arithmetic number, because the mean of its divisors is an integer number (8436960).

Almost surely, 2^664306104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664306104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079930880).

664306104 is an abundant number, since it is smaller than the sum of its proper divisors (1495555656).

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

664306104 is a wasteful number, since it uses less digits than its factorization.

664306104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 664306104 is about 25774.1363385856. The cubic root of 664306104 is about 872.5481746675.

The spelling of 664306104 in words is "six hundred sixty-four million, three hundred six thousand, one hundred four".