6420266303 has 8 divisors (see below), whose sum is σ = 7033989456. Its totient is φ = 5811553600.

The previous prime is 6420266249. The next prime is 6420266311. The reversal of 6420266303 is 3036620246.

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

It is a cyclic number.

It is not a de Polignac number, because 6420266303 - 2¹⁴ = 6420249919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6420266303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420263303) 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, 1249928 + ... + 1255053.

It is an arithmetic number, because the mean of its divisors is an integer number (879248682).

Almost surely, 2^6420266303 is an apocalyptic number.

6420266303 is a deficient number, since it is larger than the sum of its proper divisors (613723153).

6420266303 is a wasteful number, since it uses less digits than its factorization.

6420266303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505225.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 6420266303 is about 80126.5642780221. The cubic root of 6420266303 is about 1858.5932152776.

Adding to 6420266303 its reverse (3036620246), we get a palindrome (9456886549).

The spelling of 6420266303 in words is "six billion, four hundred twenty million, two hundred sixty-six thousand, three hundred three".