27660537705 has 16 divisors (see below), whose sum is σ = 45782959680. Its totient is φ = 14243587008.

The previous prime is 27660537683. The next prime is 27660537721. The reversal of 27660537705 is 50773506672.

It is not a de Polignac number, because 27660537705 - 2⁷ = 27660537577 is a prime.

It is a super-2 number, since 2×27660537705² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31793287 + ... + 31794156.

It is an arithmetic number, because the mean of its divisors is an integer number (2861434980).

Almost surely, 2^27660537705 is an apocalyptic number.

It is an amenable number.

27660537705 is a deficient number, since it is larger than the sum of its proper divisors (18122421975).

27660537705 is a wasteful number, since it uses less digits than its factorization.

27660537705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63587480.

The product of its (nonzero) digits is 1852200, while the sum is 48.

The spelling of 27660537705 in words is "twenty-seven billion, six hundred sixty million, five hundred thirty-seven thousand, seven hundred five".