66548608 has 96 divisors (see below), whose sum is σ = 161580240. Its totient is φ = 26738688.

The previous prime is 66548561. The next prime is 66548639. The reversal of 66548608 is 80684566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258816 + ... + 259072.

Almost surely, 2^66548608 is an apocalyptic number.

66548608 is a gapful number since it is divisible by the number (68) 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 66548608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80790120).

66548608 is an abundant number, since it is smaller than the sum of its proper divisors (95031632).

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

66548608 is a wasteful number, since it uses less digits than its factorization.

66548608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 66548608 is about 8157.7330184310. The cubic root of 66548608 is about 405.2406393917.

The spelling of 66548608 in words is "sixty-six million, five hundred forty-eight thousand, six hundred eight".