66328160 has 48 divisors (see below), whose sum is σ = 160538112. Its totient is φ = 25881600.

The previous prime is 66328153. The next prime is 66328177. The reversal of 66328160 is 6182366.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1505 + ... + 11615.

It is an arithmetic number, because the mean of its divisors is an integer number (3344544).

Almost surely, 2^66328160 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 66328160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80269056).

66328160 is an abundant number, since it is smaller than the sum of its proper divisors (94209952).

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

66328160 is a wasteful number, since it uses less digits than its factorization.

66328160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10167 (or 10159 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 66328160 is about 8144.2102133970. The cubic root of 66328160 is about 404.7926795429.

The spelling of 66328160 in words is "sixty-six million, three hundred twenty-eight thousand, one hundred sixty".