5556212126555 has 16 divisors (see below), whose sum is σ = 6957465145344. Its totient is φ = 4251636042720.

The previous prime is 5556212126513. The next prime is 5556212126557.

It is a happy number.

5556212126555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5556212126555 - 2¹⁴ = 5556212110171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5556212126557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6731510 + ... + 7511700.

It is an arithmetic number, because the mean of its divisors is an integer number (434841571584).

Almost surely, 2^{5556212126555} is an apocalyptic number.

5556212126555 is a deficient number, since it is larger than the sum of its proper divisors (1401253018789).

5556212126555 is a wasteful number, since it uses less digits than its factorization.

5556212126555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842146.

The product of its digits is 4500000, while the sum is 50.

The spelling of 5556212126555 in words is "five trillion, five hundred fifty-six billion, two hundred twelve million, one hundred twenty-six thousand, five hundred fifty-five".