66281202 has 48 divisors (see below), whose sum is σ = 155570688. Its totient is φ = 20273760.

The previous prime is 66281183. The next prime is 66281203. The reversal of 66281202 is 20218266.

It is not an unprimeable number, because it can be changed into a prime (66281203) 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, 43953 + ... + 45435.

It is an arithmetic number, because the mean of its divisors is an integer number (3241056).

Almost surely, 2^66281202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66281202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77785344).

66281202 is an abundant number, since it is smaller than the sum of its proper divisors (89289486).

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

66281202 is a wasteful number, since it uses less digits than its factorization.

66281202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 66281202 is about 8141.3267960450. The cubic root of 66281202 is about 404.6971306733.

Adding to 66281202 its reverse (20218266), we get a palindrome (86499468).

The spelling of 66281202 in words is "sixty-six million, two hundred eighty-one thousand, two hundred two".