27555655655586 has 16 divisors (see below), whose sum is σ = 55137393357984. Its totient is φ = 9180871544064.

The previous prime is 27555655655581. The next prime is 27555655655651. The reversal of 27555655655586 is 68555655655572.

It is not an unprimeable number, because it can be changed into a prime (27555655655581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086738216 + ... + 1086763571.

It is an arithmetic number, because the mean of its divisors is an integer number (3446087084874).

Almost surely, 2^{27555655655586} is an apocalyptic number.

27555655655586 is an abundant number, since it is smaller than the sum of its proper divisors (27581737702398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27555655655586 is a wasteful number, since it uses less digits than its factorization.

27555655655586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173503905.

The product of its digits is 9450000000, while the sum is 75.

It can be divided in two parts, 2755565 and 5655586, that added together give a triangular number (8411151 = T₄₁₀₁).

The spelling of 27555655655586 in words is "twenty-seven trillion, five hundred fifty-five billion, six hundred fifty-five million, six hundred fifty-five thousand, five hundred eighty-six".