555986727689555 has 16 divisors (see below), whose sum is σ = 678727295274240. Its totient is φ = 437099123396832.

The previous prime is 555986727689531. The next prime is 555986727689587.

555986727689555 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 555986727689555 - 2¹⁴ = 555986727673171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325559969 + ... + 327263298.

It is an arithmetic number, because the mean of its divisors is an integer number (42420455954640).

Almost surely, 2^{555986727689555} is an apocalyptic number.

555986727689555 is a deficient number, since it is larger than the sum of its proper divisors (122740567584685).

555986727689555 is a wasteful number, since it uses less digits than its factorization.

555986727689555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652826218.

The product of its digits is 285768000000, while the sum is 92.

The spelling of 555986727689555 in words is "five hundred fifty-five trillion, nine hundred eighty-six billion, seven hundred twenty-seven million, six hundred eighty-nine thousand, five hundred fifty-five".