66422642999 has 8 divisors (see below), whose sum is σ = 67427297280. Its totient is φ = 65425514616.

The previous prime is 66422642989. The next prime is 66422643011. The reversal of 66422642999 is 99924622466.

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

It is a cyclic number.

It is not a de Polignac number, because 66422642999 - 2¹² = 66422638903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66422642969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1863689 + ... + 1898994.

It is an arithmetic number, because the mean of its divisors is an integer number (8428412160).

Almost surely, 2^66422642999 is an apocalyptic number.

66422642999 is a deficient number, since it is larger than the sum of its proper divisors (1004654281).

66422642999 is a wasteful number, since it uses less digits than its factorization.

66422642999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762949.

The product of its digits is 20155392, while the sum is 59.

The spelling of 66422642999 in words is "sixty-six billion, four hundred twenty-two million, six hundred forty-two thousand, nine hundred ninety-nine".