66227360 has 48 divisors (see below), whose sum is σ = 158378976. Its totient is φ = 26166528.

The previous prime is 66227351. The next prime is 66227363. The reversal of 66227360 is 6372266.

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

It is not an unprimeable number, because it can be changed into a prime (66227363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10787 + ... + 15773.

It is an arithmetic number, because the mean of its divisors is an integer number (3299562).

Almost surely, 2^66227360 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 66227360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79189488).

66227360 is an abundant number, since it is smaller than the sum of its proper divisors (92151616).

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

66227360 is a wasteful number, since it uses less digits than its factorization.

66227360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085 (or 5077 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 66227360 is about 8138.0194150665. The cubic root of 66227360 is about 404.5875188726.

The spelling of 66227360 in words is "sixty-six million, two hundred twenty-seven thousand, three hundred sixty".