664110342 has 48 divisors (see below), whose sum is σ = 1650403872. Its totient is φ = 189060480.

The previous prime is 664110341. The next prime is 664110371. The reversal of 664110342 is 243011466.

664110342 is a `hidden beast` number, since 6 + 641 + 10 + 3 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664110341) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 26028 + ... + 44784.

It is an arithmetic number, because the mean of its divisors is an integer number (34383414).

Almost surely, 2^664110342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664110342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825201936).

664110342 is an abundant number, since it is smaller than the sum of its proper divisors (986293530).

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

664110342 is a wasteful number, since it uses less digits than its factorization.

664110342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19053 (or 19050 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 664110342 is about 25770.3384145416. The cubic root of 664110342 is about 872.4624568756.

The spelling of 664110342 in words is "six hundred sixty-four million, one hundred ten thousand, three hundred forty-two".