271661864 has 8 divisors (see below), whose sum is σ = 509366010. Its totient is φ = 135830928.

The previous prime is 271661849. The next prime is 271661869. The reversal of 271661864 is 468166172.

271661864 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 270339364 + 1322500 = 16442^2 + 1150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (271661869) 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 as a sum of consecutive naturals, namely, 16978859 + ... + 16978874.

Almost surely, 2^271661864 is an apocalyptic number.

It is an amenable number.

271661864 is a deficient number, since it is larger than the sum of its proper divisors (237704146).

271661864 is a wasteful number, since it uses less digits than its factorization.

271661864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33957739 (or 33957735 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 271661864 is about 16482.1680612716. The cubic root of 271661864 is about 647.6537613299.

The spelling of 271661864 in words is "two hundred seventy-one million, six hundred sixty-one thousand, eight hundred sixty-four".