66544848 has 80 divisors (see below), whose sum is σ = 197209600. Its totient is φ = 21461760.

The previous prime is 66544847. The next prime is 66544867. The reversal of 66544848 is 84844566.

66544848 is a `hidden beast` number, since 66 + 544 + 8 + 48 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66544843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10908 + ... + 15876.

It is an arithmetic number, because the mean of its divisors is an integer number (2465120).

Almost surely, 2^66544848 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 66544848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98604800).

66544848 is an abundant number, since it is smaller than the sum of its proper divisors (130664752).

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

66544848 is a wasteful number, since it uses less digits than its factorization.

66544848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017 (or 5005 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 66544848 is about 8157.5025589944. The cubic root of 66544848 is about 405.2330072085.

The spelling of 66544848 in words is "sixty-six million, five hundred forty-four thousand, eight hundred forty-eight".