27166544566172 has 48 divisors (see below), whose sum is σ = 51912988664544. Its totient is φ = 12336627072000.

The previous prime is 27166544566169. The next prime is 27166544566181.

27166544566172 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×27166544566172² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309931472 + ... + 310019112.

It is an arithmetic number, because the mean of its divisors is an integer number (1081520597178).

Almost surely, 2^{27166544566172} is an apocalyptic number.

27166544566172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27166544566172 is a deficient number, since it is larger than the sum of its proper divisors (24746444098372).

27166544566172 is a wasteful number, since it uses less digits than its factorization.

27166544566172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94310 (or 94308 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 62.

The spelling of 27166544566172 in words is "twenty-seven trillion, one hundred sixty-six billion, five hundred forty-four million, five hundred sixty-six thousand, one hundred seventy-two".