66302244 has 72 divisors (see below), whose sum is σ = 179026848. Its totient is φ = 20616960.

The previous prime is 66302239. The next prime is 66302263. The reversal of 66302244 is 44220366.

66302244 is a `hidden beast` number, since 6 + 630 + 2 + 24 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79759 + ... + 80585.

It is an arithmetic number, because the mean of its divisors is an integer number (2486484).

Almost surely, 2^66302244 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 66302244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89513424).

66302244 is an abundant number, since it is smaller than the sum of its proper divisors (112724604).

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

66302244 is a wasteful number, since it uses less digits than its factorization.

66302244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 66302244 is about 8142.6189889986. The cubic root of 66302244 is about 404.7399519448.

The spelling of 66302244 in words is "sixty-six million, three hundred two thousand, two hundred forty-four".