630220611 has 4 divisors (see below), whose sum is σ = 840294152. Its totient is φ = 420147072.

The previous prime is 630220601. The next prime is 630220621. The reversal of 630220611 is 116022036.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (630220601) and next prime (630220621).

It is not a de Polignac number, because 630220611 - 2¹⁰ = 630219587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630220601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105036766 + ... + 105036771.

It is an arithmetic number, because the mean of its divisors is an integer number (210073538).

Almost surely, 2^630220611 is an apocalyptic number.

630220611 is a deficient number, since it is larger than the sum of its proper divisors (210073541).

630220611 is a wasteful number, since it uses less digits than its factorization.

630220611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210073540.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 630220611 is about 25104.1950876741. The cubic root of 630220611 is about 857.3619407877.

Adding to 630220611 its reverse (116022036), we get a palindrome (746242647).

The spelling of 630220611 in words is "six hundred thirty million, two hundred twenty thousand, six hundred eleven".