664348122 has 16 divisors (see below), whose sum is σ = 1476329280. Its totient is φ = 221449356.

The previous prime is 664348109. The next prime is 664348159. The reversal of 664348122 is 221843466.

664348122 is a `hidden beast` number, since 6 + 643 + 4 + 8 + 1 + 2 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6151318 + ... + 6151425.

It is an arithmetic number, because the mean of its divisors is an integer number (92270580).

Almost surely, 2^664348122 is an apocalyptic number.

664348122 is an abundant number, since it is smaller than the sum of its proper divisors (811981158).

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

664348122 is a wasteful number, since it uses less digits than its factorization.

664348122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12302754 (or 12302748 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 664348122 is about 25774.9514451531. The cubic root of 664348122 is about 872.5665707834.

The spelling of 664348122 in words is "six hundred sixty-four million, three hundred forty-eight thousand, one hundred twenty-two".