66343168 has 36 divisors (see below), whose sum is σ = 132992860. Its totient is φ = 33030144.

The previous prime is 66343159. The next prime is 66343187. The reversal of 66343168 is 86134366.

It can be written as a sum of positive squares in 2 ways, for example, as 21827584 + 44515584 = 4672^2 + 6672^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85888 + ... + 86656.

Almost surely, 2^66343168 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 66343168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66496430).

66343168 is an abundant number, since it is smaller than the sum of its proper divisors (66649692).

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

66343168 is an equidigital number, since it uses as much as digits as its factorization.

66343168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1108 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 66343168 is about 8145.1315520377. The cubic root of 66343168 is about 404.8232079056.

The spelling of 66343168 in words is "sixty-six million, three hundred forty-three thousand, one hundred sixty-eight".