556011055511 has 4 divisors (see below), whose sum is σ = 556248771000. Its totient is φ = 555773340024.

The previous prime is 556011055507. The next prime is 556011055597. The reversal of 556011055511 is 115550110655.

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 556011055511 - 2² = 556011055507 is a prime.

It is a super-2 number, since 2×556011055511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556011051511) 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, 118854236 + ... + 118858913.

It is an arithmetic number, because the mean of its divisors is an integer number (139062192750).

Almost surely, 2^556011055511 is an apocalyptic number.

556011055511 is a deficient number, since it is larger than the sum of its proper divisors (237715489).

556011055511 is a wasteful number, since it uses less digits than its factorization.

556011055511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237715488.

The product of its (nonzero) digits is 18750, while the sum is 35.

The spelling of 556011055511 in words is "five hundred fifty-six billion, eleven million, fifty-five thousand, five hundred eleven".