66344808 has 96 divisors (see below), whose sum is σ = 181864800. Its totient is φ = 20111616.

The previous prime is 66344797. The next prime is 66344821. The reversal of 66344808 is 80844366.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 383410 + ... + 383582.

It is an arithmetic number, because the mean of its divisors is an integer number (1894425).

Almost surely, 2^66344808 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 66344808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90932400).

66344808 is an abundant number, since it is smaller than the sum of its proper divisors (115519992).

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

66344808 is a wasteful number, since it uses less digits than its factorization.

66344808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 66344808 is about 8145.2322250504. The cubic root of 66344808 is about 404.8265436150.

The spelling of 66344808 in words is "sixty-six million, three hundred forty-four thousand, eight hundred eight".