66241000 has 64 divisors (see below), whose sum is σ = 177166080. Its totient is φ = 22708800.

The previous prime is 66240983. The next prime is 66241013. The reversal of 66241000 is 14266.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (2768220).

Almost surely, 2^66241000 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 66241000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88583040).

66241000 is an abundant number, since it is smaller than the sum of its proper divisors (110925080).

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

66241000 is a wasteful number, since it uses less digits than its factorization.

66241000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9491 (or 9477 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 66241000 is about 8138.8574136669. The cubic root of 66241000 is about 404.6152928668.

Adding to 66241000 its reverse (14266), we get a palindrome (66255266).

The spelling of 66241000 in words is "sixty-six million, two hundred forty-one thousand".