66660122 has 8 divisors (see below), whose sum is σ = 101195136. Its totient is φ = 32928412.

The previous prime is 66660119. The next prime is 66660127. The reversal of 66660122 is 22106666.

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 (66660127) 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, 200618 + ... + 200949.

It is an arithmetic number, because the mean of its divisors is an integer number (12649392).

Almost surely, 2^66660122 is an apocalyptic number.

66660122 is a deficient number, since it is larger than the sum of its proper divisors (34535014).

66660122 is a wasteful number, since it uses less digits than its factorization.

66660122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401652.

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

The square root of 66660122 is about 8164.5650220940. The cubic root of 66660122 is about 405.4668639425.

Adding to 66660122 its reverse (22106666), we get a palindrome (88766788).

The spelling of 66660122 in words is "sixty-six million, six hundred sixty thousand, one hundred twenty-two".