556030219991 has 4 divisors (see below), whose sum is σ = 562729379352. Its totient is φ = 549331060632.

The previous prime is 556030219981. The next prime is 556030219993. The reversal of 556030219991 is 199912030655.

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

It is a cyclic number.

It is not a de Polignac number, because 556030219991 - 2¹⁰ = 556030218967 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 (556030219993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349579556 + ... + 3349579721.

It is an arithmetic number, because the mean of its divisors is an integer number (140682344838).

Almost surely, 2^556030219991 is an apocalyptic number.

556030219991 is a deficient number, since it is larger than the sum of its proper divisors (6699159361).

556030219991 is an equidigital number, since it uses as much as digits as its factorization.

556030219991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699159360.

The product of its (nonzero) digits is 656100, while the sum is 50.

The spelling of 556030219991 in words is "five hundred fifty-six billion, thirty million, two hundred nineteen thousand, nine hundred ninety-one".