66574848 has 80 divisors (see below), whose sum is σ = 179720640. Its totient is φ = 21897216.

The previous prime is 66574847. The next prime is 66574861. The reversal of 66574848 is 84847566.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 66574797 and 66574806.

It is not an unprimeable number, because it can be changed into a prime (66574847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136461 + ... + 136947.

It is an arithmetic number, because the mean of its divisors is an integer number (2246508).

Almost surely, 2^66574848 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 66574848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89860320).

66574848 is an abundant number, since it is smaller than the sum of its proper divisors (113145792).

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

66574848 is an equidigital number, since it uses as much as digits as its factorization.

66574848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 581 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 66574848 is about 8159.3411498723. The cubic root of 66574848 is about 405.2938942852.

The spelling of 66574848 in words is "sixty-six million, five hundred seventy-four thousand, eight hundred forty-eight".