66232422666 has 12 divisors (see below), whose sum is σ = 143503582482. Its totient is φ = 22077474216.

The previous prime is 66232422643. The next prime is 66232422667. The reversal of 66232422666 is 66622423266.

It can be written as a sum of positive squares in only one way, i.e., 64650690225 + 1581732441 = 254265^2 + 39771^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66232422667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1839789501 + ... + 1839789536.

Almost surely, 2^66232422666 is an apocalyptic number.

66232422666 is an abundant number, since it is smaller than the sum of its proper divisors (77271159816).

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

66232422666 is a wasteful number, since it uses less digits than its factorization.

66232422666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679579045 (or 3679579042 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 45.

The spelling of 66232422666 in words is "sixty-six billion, two hundred thirty-two million, four hundred twenty-two thousand, six hundred sixty-six".