27666313651333 has 16 divisors (see below), whose sum is σ = 31845387603456. Its totient is φ = 23544225229680.

The previous prime is 27666313651303. The next prime is 27666313651369. The reversal of 27666313651333 is 33315631366672.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27666313651333 is a prime.

It is a super-2 number, since 2×27666313651333² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27666313651303) by changing a digit.

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, 11377891 + ... + 13593712.

It is an arithmetic number, because the mean of its divisors is an integer number (1990336725216).

Almost surely, 2^{27666313651333} is an apocalyptic number.

It is an amenable number.

27666313651333 is a deficient number, since it is larger than the sum of its proper divisors (4179073952123).

27666313651333 is a wasteful number, since it uses less digits than its factorization.

27666313651333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24972744.

The product of its digits is 22044960, while the sum is 55.

The spelling of 27666313651333 in words is "twenty-seven trillion, six hundred sixty-six billion, three hundred thirteen million, six hundred fifty-one thousand, three hundred thirty-three".