556763320133 has 4 divisors (see below), whose sum is σ = 575962055340. Its totient is φ = 537564584928.

The previous prime is 556763320121. The next prime is 556763320151. The reversal of 556763320133 is 331023367655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331023367655 = 5 ⋅66204673531.

It can be written as a sum of positive squares in 2 ways, for example, as 344853166564 + 211910153569 = 587242^2 + 460337^2 .

It is a cyclic number.

It is not a de Polignac number, because 556763320133 - 2²² = 556759125829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556763320933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9599367560 + ... + 9599367617.

It is an arithmetic number, because the mean of its divisors is an integer number (143990513835).

Almost surely, 2^556763320133 is an apocalyptic number.

It is an amenable number.

556763320133 is a deficient number, since it is larger than the sum of its proper divisors (19198735207).

556763320133 is a wasteful number, since it uses less digits than its factorization.

556763320133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19198735206.

The product of its (nonzero) digits is 1020600, while the sum is 44.

Adding to 556763320133 its reverse (331023367655), we get a palindrome (887786687788).

The spelling of 556763320133 in words is "five hundred fifty-six billion, seven hundred sixty-three million, three hundred twenty thousand, one hundred thirty-three".