556276343672655 has 12 divisors (see below), whose sum is σ = 964212329032680. Its totient is φ = 296680716625392.

The previous prime is 556276343672579. The next prime is 556276343672681.

556276343672655 is a `hidden beast` number, since 5 + 5 + 6 + 2 + 7 + 63 + 436 + 72 + 65 + 5 = 666.

556276343672655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556276343672655 - 2¹² = 556276343668559 is a prime.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6180848262985 + ... + 6180848263074.

It is an arithmetic number, because the mean of its divisors is an integer number (80351027419390).

Almost surely, 2^{556276343672655} is an apocalyptic number.

556276343672655 is a deficient number, since it is larger than the sum of its proper divisors (407935985360025).

556276343672655 is a wasteful number, since it uses less digits than its factorization.

556276343672655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12361696526070 (or 12361696526067 counting only the distinct ones).

The product of its digits is 5715360000, while the sum is 72.

The spelling of 556276343672655 in words is "five hundred fifty-six trillion, two hundred seventy-six billion, three hundred forty-three million, six hundred seventy-two thousand, six hundred fifty-five".