66548196 has 192 divisors, whose sum is σ = 210739200. Its totient is φ = 17884800.

The previous prime is 66548147. The next prime is 66548201. The reversal of 66548196 is 69184566.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 478695 + ... + 478833.

It is an arithmetic number, because the mean of its divisors is an integer number (1097600).

Almost surely, 2^66548196 is an apocalyptic number.

66548196 is a gapful number since it is divisible by the number (66) 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 66548196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105369600).

66548196 is an abundant number, since it is smaller than the sum of its proper divisors (144191004).

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

66548196 is a wasteful number, since it uses less digits than its factorization.

66548196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 199 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 66548196 is about 8157.7077662785. The cubic root of 66548196 is about 405.2398031133.

The spelling of 66548196 in words is "sixty-six million, five hundred forty-eight thousand, one hundred ninety-six".