66028160 has 128 divisors (see below), whose sum is σ = 175815360. Its totient is φ = 23511040.

The previous prime is 66028159. The next prime is 66028199. The reversal of 66028160 is 6182066.

It is a tau number, because it is divible by the number of its divisors (128).

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, 584264 + ... + 584376.

Almost surely, 2^66028160 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 66028160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87907680).

66028160 is an abundant number, since it is smaller than the sum of its proper divisors (109787200).

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

66028160 is a wasteful number, since it uses less digits than its factorization.

66028160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 66028160 is about 8125.7713480014. The cubic root of 66028160 is about 404.1814693035.

The spelling of 66028160 in words is "sixty-six million, twenty-eight thousand, one hundred sixty".