26566320680055 has 160 divisors (see below), whose sum is σ = 52041937546368. Its totient is φ = 12886231680000.

The previous prime is 26566320679991. The next prime is 26566320680071. The reversal of 26566320680055 is 55008602366562.

26566320680055 is a `hidden beast` number, since 2 + 6 + 566 + 3 + 20 + 6 + 8 + 0 + 0 + 55 = 666.

It is not a de Polignac number, because 26566320680055 - 2⁶ = 26566320679991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26566320679983 and 26566320680010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 596960305 + ... + 597004805.

Almost surely, 2^{26566320680055} is an apocalyptic number.

26566320680055 is a deficient number, since it is larger than the sum of its proper divisors (25475616866313).

26566320680055 is a wasteful number, since it uses less digits than its factorization.

26566320680055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46199 (or 46190 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 26566320680055 in words is "twenty-six trillion, five hundred sixty-six billion, three hundred twenty million, six hundred eighty thousand, fifty-five".