271664 has 10 divisors (see below), whose sum is σ = 526380. Its totient is φ = 135824.

The previous prime is 271657. The next prime is 271693. The reversal of 271664 is 466172.

It is a plaindrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 271664.

It is an unprimeable number.

271664 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8474 + ... + 8505.

It is an arithmetic number, because the mean of its divisors is an integer number (52638).

2²⁷¹⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

271664 is a deficient number, since it is larger than the sum of its proper divisors (254716).

271664 is a wasteful number, since it uses less digits than its factorization.

271664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16987 (or 16981 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 271664 is about 521.2139675795. The cubic root of 271664 is about 64.7655458765.

The spelling of 271664 in words is "two hundred seventy-one thousand, six hundred sixty-four".