6420266333 has 4 divisors (see below), whose sum is σ = 6914132988. Its totient is φ = 5926399680.

The previous prime is 6420266311. The next prime is 6420266341. The reversal of 6420266333 is 3336620246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1021249849 + 5399016484 = 31957^2 + 73478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6420266333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6420266293 and 6420266302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420262333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246933308 + ... + 246933333.

It is an arithmetic number, because the mean of its divisors is an integer number (1728533247).

Almost surely, 2^6420266333 is an apocalyptic number.

It is an amenable number.

6420266333 is a deficient number, since it is larger than the sum of its proper divisors (493866655).

6420266333 is a wasteful number, since it uses less digits than its factorization.

6420266333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493866654.

The product of its (nonzero) digits is 93312, while the sum is 35.

The square root of 6420266333 is about 80126.5644652259. The cubic root of 6420266333 is about 1858.5932181724.

Adding to 6420266333 its reverse (3336620246), we get a palindrome (9756886579).

The spelling of 6420266333 in words is "six billion, four hundred twenty million, two hundred sixty-six thousand, three hundred thirty-three".