27663163557 has 16 divisors (see below), whose sum is σ = 37093593600. Its totient is φ = 18337670000.

The previous prime is 27663163531. The next prime is 27663163663. The reversal of 27663163557 is 75536136672.

It is a cyclic number.

It is not a de Polignac number, because 27663163557 - 2¹⁴ = 27663147173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27663167557) 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, 420382 + ... + 481712.

It is an arithmetic number, because the mean of its divisors is an integer number (2318349600).

Almost surely, 2^27663163557 is an apocalyptic number.

It is an amenable number.

27663163557 is a deficient number, since it is larger than the sum of its proper divisors (9430430043).

27663163557 is a wasteful number, since it uses less digits than its factorization.

27663163557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62184.

The product of its digits is 4762800, while the sum is 51.

The spelling of 27663163557 in words is "twenty-seven billion, six hundred sixty-three million, one hundred sixty-three thousand, five hundred fifty-seven".