66225845 has 8 divisors (see below), whose sum is σ = 90824064. Its totient is φ = 45411984.

The previous prime is 66225839. The next prime is 66225847. The reversal of 66225845 is 54852266.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66225845 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66225799 and 66225808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66225847) 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, 946049 + ... + 946118.

It is an arithmetic number, because the mean of its divisors is an integer number (11353008).

Almost surely, 2^66225845 is an apocalyptic number.

It is an amenable number.

66225845 is a deficient number, since it is larger than the sum of its proper divisors (24598219).

66225845 is a wasteful number, since it uses less digits than its factorization.

66225845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892179.

The product of its digits is 115200, while the sum is 38.

The square root of 66225845 is about 8137.9263329180. The cubic root of 66225845 is about 404.5844337692.

The spelling of 66225845 in words is "sixty-six million, two hundred twenty-five thousand, eight hundred forty-five".