66282945 has 16 divisors (see below), whose sum is σ = 106453440. Its totient is φ = 35217344.

The previous prime is 66282943. The next prime is 66282961. The reversal of 66282945 is 54928266.

It is a cyclic number.

It is not a de Polignac number, because 66282945 - 2¹ = 66282943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66282897 and 66282906.

It is not an unprimeable number, because it can be changed into a prime (66282943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4179 + ... + 12248.

It is an arithmetic number, because the mean of its divisors is an integer number (6653340).

Almost surely, 2^66282945 is an apocalyptic number.

It is an amenable number.

66282945 is a deficient number, since it is larger than the sum of its proper divisors (40170495).

66282945 is a wasteful number, since it uses less digits than its factorization.

66282945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16704.

The product of its digits is 207360, while the sum is 42.

The square root of 66282945 is about 8141.4338417750. The cubic root of 66282945 is about 404.7006780889.

The spelling of 66282945 in words is "sixty-six million, two hundred eighty-two thousand, nine hundred forty-five".