271681668 has 24 divisors (see below), whose sum is σ = 704360160. Its totient is φ = 90560520.

The previous prime is 271681633. The next prime is 271681699. The reversal of 271681668 is 866186172.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257678 + ... + 1257893.

It is an arithmetic number, because the mean of its divisors is an integer number (29348340).

Almost surely, 2^271681668 is an apocalyptic number.

It is an amenable number.

271681668 is an abundant number, since it is smaller than the sum of its proper divisors (432678492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

271681668 is a wasteful number, since it uses less digits than its factorization.

271681668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515584 (or 2515576 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 271681668 is about 16482.7688208019. The cubic root of 271681668 is about 647.6694988148.

The spelling of 271681668 in words is "two hundred seventy-one million, six hundred eighty-one thousand, six hundred sixty-eight".