66661202 has 8 divisors (see below), whose sum is σ = 100107696. Its totient is φ = 33291972.

The previous prime is 66661193. The next prime is 66661207. The reversal of 66661202 is 20216666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66661207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17108 + ... + 20639.

It is an arithmetic number, because the mean of its divisors is an integer number (12513462).

Almost surely, 2^66661202 is an apocalyptic number.

66661202 is a deficient number, since it is larger than the sum of its proper divisors (33446494).

66661202 is a wasteful number, since it uses less digits than its factorization.

66661202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38632.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 66661202 is about 8164.6311612957. The cubic root of 66661202 is about 405.4690536667.

Adding to 66661202 its reverse (20216666), we get a palindrome (86877868).

The spelling of 66661202 in words is "sixty-six million, six hundred sixty-one thousand, two hundred two".