27271880164 has 9 divisors (see below), whose sum is σ = 47726368291. Its totient is φ = 13635774940.

The previous prime is 27271880123. The next prime is 27271880177. The reversal of 27271880164 is 46108817272.

The square root of 27271880164 is 165142.

It is a perfect power (a square), and thus also a powerful number.

It is a super-4 number, since 4×27271880164⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 288999 + ... + 371569.

Almost surely, 2^27271880164 is an apocalyptic number.

27271880164 is the 165142-nd square number.

It is an amenable number.

27271880164 is a deficient number, since it is larger than the sum of its proper divisors (20454488127).

27271880164 is an frugal number, since it uses more digits than its factorization.

27271880164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165146 (or 82573 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 27271880164 in words is "twenty-seven billion, two hundred seventy-one million, eight hundred eighty thousand, one hundred sixty-four".