27168215606605 has 16 divisors (see below), whose sum is σ = 32612751792000. Its totient is φ = 21727311480000.

The previous prime is 27168215606561. The next prime is 27168215606647. The reversal of 27168215606605 is 50660651286172.

It is not a de Polignac number, because 27168215606605 - 2⁹ = 27168215606093 is a prime.

It is a super-2 number, since 2×27168215606605² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 237845296 + ... + 237959494.

It is an arithmetic number, because the mean of its divisors is an integer number (2038296987000).

Almost surely, 2^{27168215606605} is an apocalyptic number.

It is an amenable number.

27168215606605 is a deficient number, since it is larger than the sum of its proper divisors (5444536185395).

27168215606605 is a wasteful number, since it uses less digits than its factorization.

27168215606605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129684.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 27168215606605 in words is "twenty-seven trillion, one hundred sixty-eight billion, two hundred fifteen million, six hundred six thousand, six hundred five".