66272230 has 16 divisors (see below), whose sum is σ = 121246704. Its totient is φ = 26074080.

The previous prime is 66272201. The next prime is 66272233. The reversal of 66272230 is 3227266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66272233) 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, 53712 + ... + 54931.

It is an arithmetic number, because the mean of its divisors is an integer number (7577919).

Almost surely, 2^66272230 is an apocalyptic number.

66272230 is a deficient number, since it is larger than the sum of its proper divisors (54974474).

66272230 is a wasteful number, since it uses less digits than its factorization.

66272230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108711.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 66272230 is about 8140.7757615598. The cubic root of 66272230 is about 404.6788695555.

Adding to 66272230 its reverse (3227266), we get a palindrome (69499496).

The spelling of 66272230 in words is "sixty-six million, two hundred seventy-two thousand, two hundred thirty".