66404848 has 20 divisors (see below), whose sum is σ = 135431560. Its totient is φ = 31454784.

The previous prime is 66404827. The next prime is 66404851. The reversal of 66404848 is 84840466.

It is a self number, because there is not a number n which added to its sum of digits gives 66404848.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108915 + ... + 109522.

It is an arithmetic number, because the mean of its divisors is an integer number (6771578).

Almost surely, 2^66404848 is an apocalyptic number.

It is an amenable number.

66404848 is an abundant number, since it is smaller than the sum of its proper divisors (69026712).

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

66404848 is a wasteful number, since it uses less digits than its factorization.

66404848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218464 (or 218458 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 66404848 is about 8148.9169832561. The cubic root of 66404848 is about 404.9486252976.

The spelling of 66404848 in words is "sixty-six million, four hundred four thousand, eight hundred forty-eight".