555111666011 has 8 divisors (see below), whose sum is σ = 635209340640. Its totient is φ = 475212993408.

The previous prime is 555111666001. The next prime is 555111666073. The reversal of 555111666011 is 110666111555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555111666011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (555111666001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49744526 + ... + 49755683.

It is an arithmetic number, because the mean of its divisors is an integer number (79401167580).

Almost surely, 2^555111666011 is an apocalyptic number.

555111666011 is a deficient number, since it is larger than the sum of its proper divisors (80097674629).

555111666011 is an equidigital number, since it uses as much as digits as its factorization.

555111666011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99501013.

The product of its (nonzero) digits is 27000, while the sum is 38.

Adding to 555111666011 its reverse (110666111555), we get a palindrome (665777777566).

The spelling of 555111666011 in words is "five hundred fifty-five billion, one hundred eleven million, six hundred sixty-six thousand, eleven".