27655465906 has 4 divisors (see below), whose sum is σ = 41483198862. Its totient is φ = 13827732952.

The previous prime is 27655465897. The next prime is 27655465933. The reversal of 27655465906 is 60956455672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26047054881 + 1608411025 = 161391^2 + 40105^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6913866475 + ... + 6913866478.

Almost surely, 2^27655465906 is an apocalyptic number.

27655465906 is a deficient number, since it is larger than the sum of its proper divisors (13827732956).

27655465906 is a wasteful number, since it uses less digits than its factorization.

27655465906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827732955.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 27655465906 in words is "twenty-seven billion, six hundred fifty-five million, four hundred sixty-five thousand, nine hundred six".