271057661 has 12 divisors (see below), whose sum is σ = 316582560. Its totient is φ = 231399000.

The previous prime is 271057637. The next prime is 271057727. The reversal of 271057661 is 166750172.

It is a de Polignac number, because none of the positive numbers 2^k-271057661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271057561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1280 + ... + 23318.

It is an arithmetic number, because the mean of its divisors is an integer number (26381880).

Almost surely, 2^271057661 is an apocalyptic number.

It is an amenable number.

271057661 is a deficient number, since it is larger than the sum of its proper divisors (45524899).

271057661 is a wasteful number, since it uses less digits than its factorization.

271057661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304 (or 22297 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 271057661 is about 16463.8288681582. The cubic root of 271057661 is about 647.1732561336.

The spelling of 271057661 in words is "two hundred seventy-one million, fifty-seven thousand, six hundred sixty-one".