27663600955 has 16 divisors (see below), whose sum is σ = 34377156864. Its totient is φ = 21357348480.

The previous prime is 27663600949. The next prime is 27663600973. The reversal of 27663600955 is 55900636672.

It is a happy number.

It is not a de Polignac number, because 27663600955 - 2³ = 27663600947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27663600899 and 27663600908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 839499 + ... + 871828.

It is an arithmetic number, because the mean of its divisors is an integer number (2148572304).

Almost surely, 2^27663600955 is an apocalyptic number.

27663600955 is a deficient number, since it is larger than the sum of its proper divisors (6713555909).

27663600955 is a wasteful number, since it uses less digits than its factorization.

27663600955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711446.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 27663600955 in words is "twenty-seven billion, six hundred sixty-three million, six hundred thousand, nine hundred fifty-five".