66226303 has 16 divisors (see below), whose sum is σ = 78283296. Its totient is φ = 55232640.

The previous prime is 66226301. The next prime is 66226313. The reversal of 66226303 is 30362266.

It is a cyclic number.

It is not a de Polignac number, because 66226303 - 2¹ = 66226301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66226301) 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, 23401 + ... + 26077.

It is an arithmetic number, because the mean of its divisors is an integer number (4892706).

Almost surely, 2^66226303 is an apocalyptic number.

66226303 is a deficient number, since it is larger than the sum of its proper divisors (12056993).

66226303 is a wasteful number, since it uses less digits than its factorization.

66226303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 66226303 is about 8137.9544727161. The cubic root of 66226303 is about 404.5853664325.

Adding to 66226303 its reverse (30362266), we get a palindrome (96588569).

The spelling of 66226303 in words is "sixty-six million, two hundred twenty-six thousand, three hundred three".