66229207 has 8 divisors (see below), whose sum is σ = 72333072. Its totient is φ = 60139200.

The previous prime is 66229201. The next prime is 66229253. The reversal of 66229207 is 70292266.

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

It is not a de Polignac number, because 66229207 - 2¹¹ = 66227159 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 (66229201) 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 7 ways as a sum of consecutive naturals, for example, 8283 + ... + 14179.

It is an arithmetic number, because the mean of its divisors is an integer number (9041634).

Almost surely, 2^66229207 is an apocalyptic number.

66229207 is a deficient number, since it is larger than the sum of its proper divisors (6103865).

66229207 is a wasteful number, since it uses less digits than its factorization.

66229207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 66229207 is about 8138.1328939751. The cubic root of 66229207 is about 404.5912799879.

The spelling of 66229207 in words is "sixty-six million, two hundred twenty-nine thousand, two hundred seven".