275556755524661 has 16 divisors (see below), whose sum is σ = 297420381720000. Its totient is φ = 253788431275008.

The previous prime is 275556755524649. The next prime is 275556755524669. The reversal of 275556755524661 is 166425557655572.

It is a cyclic number.

It is not a de Polignac number, because 275556755524661 - 2¹⁴ = 275556755508277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275556755524669) 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, 303929390 + ... + 304834688.

It is an arithmetic number, because the mean of its divisors is an integer number (18588773857500).

Almost surely, 2^{275556755524661} is an apocalyptic number.

It is an amenable number.

275556755524661 is a deficient number, since it is larger than the sum of its proper divisors (21863626195339).

275556755524661 is a wasteful number, since it uses less digits than its factorization.

275556755524661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957908.

The product of its digits is 2646000000, while the sum is 71.

The spelling of 275556755524661 in words is "two hundred seventy-five trillion, five hundred fifty-six billion, seven hundred fifty-five million, five hundred twenty-four thousand, six hundred sixty-one".