556001011111 has 64 divisors (see below), whose sum is σ = 735116094720. Its totient is φ = 408701583360.

The previous prime is 556001011103. The next prime is 556001011177. The reversal of 556001011111 is 111110100655.

It is not a de Polignac number, because 556001011111 - 2³ = 556001011103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556001011411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7863331 + ... + 7933723.

It is an arithmetic number, because the mean of its divisors is an integer number (11486188980).

Almost surely, 2^556001011111 is an apocalyptic number.

556001011111 is a deficient number, since it is larger than the sum of its proper divisors (179115083609).

556001011111 is a wasteful number, since it uses less digits than its factorization.

556001011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70556.

The product of its (nonzero) digits is 150, while the sum is 22.

Adding to 556001011111 its reverse (111110100655), we get a palindrome (667111111766).

The spelling of 556001011111 in words is "five hundred fifty-six billion, one million, eleven thousand, one hundred eleven".