66001208 has 64 divisors (see below), whose sum is σ = 161300160. Its totient is φ = 24569856.

The previous prime is 66001183. The next prime is 66001213. The reversal of 66001208 is 80210066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9710 + ... + 15042.

It is an arithmetic number, because the mean of its divisors is an integer number (2520315).

Almost surely, 2^66001208 is an apocalyptic number.

66001208 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 66001208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80650080).

66001208 is an abundant number, since it is smaller than the sum of its proper divisors (95298952).

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

66001208 is a wasteful number, since it uses less digits than its factorization.

66001208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376 (or 5372 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 66001208 is about 8124.1127515563. The cubic root of 66001208 is about 404.1264676118.

The spelling of 66001208 in words is "sixty-six million, one thousand, two hundred eight".