271661012 has 48 divisors (see below), whose sum is σ = 573565440. Its totient is φ = 109981152.

The previous prime is 271661011. The next prime is 271661017. The reversal of 271661012 is 210166172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271661011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299063 + ... + 299969.

It is an arithmetic number, because the mean of its divisors is an integer number (11949280).

Almost surely, 2^271661012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 271661012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286782720).

271661012 is an abundant number, since it is smaller than the sum of its proper divisors (301904428).

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

271661012 is a wasteful number, since it uses less digits than its factorization.

271661012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 271661012 is about 16482.1422151370. The cubic root of 271661012 is about 647.6530842608.

The spelling of 271661012 in words is "two hundred seventy-one million, six hundred sixty-one thousand, twelve".