66230200 has 96 divisors (see below), whose sum is σ = 167958000. Its totient is φ = 24192000.

The previous prime is 66230173. The next prime is 66230209. The reversal of 66230200 is 203266.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66230209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109900 + ... + 110500.

Almost surely, 2^66230200 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 66230200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83979000).

66230200 is an abundant number, since it is smaller than the sum of its proper divisors (101727800).

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

66230200 is a wasteful number, since it uses less digits than its factorization.

66230200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 66230200 is about 8138.1939028264. The cubic root of 66230200 is about 404.5933020421.

Adding to 66230200 its reverse (203266), we get a palindrome (66433466).

It can be divided in two parts, 66230 and 200, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 66230200 in words is "sixty-six million, two hundred thirty thousand, two hundred".