66135230 has 32 divisors (see below), whose sum is σ = 137700864. Its totient is φ = 22399776.

The previous prime is 66135229. The next prime is 66135233. The reversal of 66135230 is 3253166.

It is a self number, because there is not a number n which added to its sum of digits gives 66135230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66135233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (4303152).

Almost surely, 2^66135230 is an apocalyptic number.

66135230 is an abundant number, since it is smaller than the sum of its proper divisors (71565634).

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

66135230 is a wasteful number, since it uses less digits than its factorization.

66135230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11480.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 66135230 is about 8132.3569769163. The cubic root of 66135230 is about 404.3998222975.

Adding to 66135230 its reverse (3253166), we get a palindrome (69388396).

The spelling of 66135230 in words is "sixty-six million, one hundred thirty-five thousand, two hundred thirty".