66045022 has 4 divisors (see below), whose sum is σ = 99067536. Its totient is φ = 33022510.

The previous prime is 66044989. The next prime is 66045041. The reversal of 66045022 is 22054066.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16511254 + ... + 16511257.

It is an arithmetic number, because the mean of its divisors is an integer number (24766884).

Almost surely, 2^66045022 is an apocalyptic number.

66045022 is a deficient number, since it is larger than the sum of its proper divisors (33022514).

66045022 is a wasteful number, since it uses less digits than its factorization.

66045022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33022513.

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

The square root of 66045022 is about 8126.8088448050. The cubic root of 66045022 is about 404.2158724423.

Adding to 66045022 its reverse (22054066), we get a palindrome (88099088).

The spelling of 66045022 in words is "sixty-six million, forty-five thousand, twenty-two".