66332168 has 32 divisors (see below), whose sum is σ = 143457600. Its totient is φ = 28164672.

The previous prime is 66332159. The next prime is 66332177. The reversal of 66332168 is 86123366.

It is an interprime number because it is at equal distance from previous prime (66332159) and next prime (66332177).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671 + ... + 11537.

It is an arithmetic number, because the mean of its divisors is an integer number (4483050).

Almost surely, 2^66332168 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 66332168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71728800).

66332168 is an abundant number, since it is smaller than the sum of its proper divisors (77125432).

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

66332168 is a wasteful number, since it uses less digits than its factorization.

66332168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10989 (or 10985 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 66332168 is about 8144.4562740554. The cubic root of 66332168 is about 404.8008328239.

The spelling of 66332168 in words is "sixty-six million, three hundred thirty-two thousand, one hundred sixty-eight".