66467285 has 8 divisors (see below), whose sum is σ = 79830360. Its totient is φ = 53127424.

The previous prime is 66467279. The next prime is 66467327. The reversal of 66467285 is 58276466.

It can be written as a sum of positive squares in 4 ways, for example, as 12327121 + 54140164 = 3511^2 + 7358^2 .

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

It is not a de Polignac number, because 66467285 - 2²² = 62272981 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 1289 + ... + 11601.

It is an arithmetic number, because the mean of its divisors is an integer number (9978795).

Almost surely, 2^66467285 is an apocalyptic number.

It is an amenable number.

66467285 is a deficient number, since it is larger than the sum of its proper divisors (13363075).

66467285 is a wasteful number, since it uses less digits than its factorization.

66467285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11607.

The product of its digits is 483840, while the sum is 44.

The square root of 66467285 is about 8152.7470830389. The cubic root of 66467285 is about 405.0755028669.

It can be divided in two parts, 6646 and 7285, that added together give a palindrome (13931).

The spelling of 66467285 in words is "sixty-six million, four hundred sixty-seven thousand, two hundred eighty-five".