66348000 has 288 divisors, whose sum is σ = 250417440. Its totient is φ = 16588800.

The previous prime is 66347989. The next prime is 66348013. The reversal of 66348000 is 84366.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 683952 + ... + 684048.

It is an arithmetic number, because the mean of its divisors is an integer number (869505).

Almost surely, 2^66348000 is an apocalyptic number.

66348000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66348000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125208720).

66348000 is an abundant number, since it is smaller than the sum of its proper divisors (184069440).

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

66348000 is a wasteful number, since it uses less digits than its factorization.

66348000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 126 counting only the distinct ones).

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

The square root of 66348000 is about 8145.4281655417. The cubic root of 66348000 is about 404.8330358870.

The spelling of 66348000 in words is "sixty-six million, three hundred forty-eight thousand".