66200000 has 84 divisors (see below), whose sum is σ = 164692584. Its totient is φ = 26400000.

The previous prime is 66199999. The next prime is 66200041. The reversal of 66200000 is 266.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199835 + ... + 200165.

It is an arithmetic number, because the mean of its divisors is an integer number (1960626).

Almost surely, 2^66200000 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 66200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82346292).

66200000 is an abundant number, since it is smaller than the sum of its proper divisors (98492584).

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

66200000 is an frugal number, since it uses more digits than its factorization.

66200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 66200000 is about 8136.3382427232. The cubic root of 66200000 is about 404.5317964883.

Adding to 66200000 its reverse (266), we get a palindrome (66200266).

The spelling of 66200000 in words is "sixty-six million, two hundred thousand".