66450022 has 8 divisors (see below), whose sum is σ = 101555856. Its totient is φ = 32598072.

The previous prime is 66450017. The next prime is 66450023. The reversal of 66450022 is 22005466.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66450023) 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 3 ways as a sum of consecutive naturals, for example, 313338 + ... + 313549.

It is an arithmetic number, because the mean of its divisors is an integer number (12694482).

Almost surely, 2^66450022 is an apocalyptic number.

66450022 is a deficient number, since it is larger than the sum of its proper divisors (35105834).

66450022 is a wasteful number, since it uses less digits than its factorization.

66450022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626942.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 66450022 is about 8151.6882913909. The cubic root of 66450022 is about 405.0404308567.

Adding to 66450022 its reverse (22005466), we get a palindrome (88455488).

The spelling of 66450022 in words is "sixty-six million, four hundred fifty thousand, twenty-two".