66285301 has 4 divisors (see below), whose sum is σ = 66301632. Its totient is φ = 66268972.

The previous prime is 66285299. The next prime is 66285337. The reversal of 66285301 is 10358266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10358266 = 2 ⋅5179133.

It is a cyclic number.

It is not a de Polignac number, because 66285301 - 2¹ = 66285299 is a prime.

It is a super-2 number, since 2×66285301² = 8787482257321202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66285361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3156 + ... + 11938.

It is an arithmetic number, because the mean of its divisors is an integer number (16575408).

Almost surely, 2^66285301 is an apocalyptic number.

It is an amenable number.

66285301 is a deficient number, since it is larger than the sum of its proper divisors (16331).

66285301 is an equidigital number, since it uses as much as digits as its factorization.

66285301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16330.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 66285301 is about 8141.5785324469. The cubic root of 66285301 is about 404.7054730051.

The spelling of 66285301 in words is "sixty-six million, two hundred eighty-five thousand, three hundred one".