15171281066271 has 24 divisors (see below), whose sum is σ = 22235950202032. Its totient is φ = 9194113843200.

The previous prime is 15171281066269. The next prime is 15171281066311. The reversal of 15171281066271 is 17266018217151.

It is not a de Polignac number, because 15171281066271 - 2¹ = 15171281066269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15171281066271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15171281064271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4215645 + ... + 6936441.

Almost surely, 2^{15171281066271} is an apocalyptic number.

15171281066271 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15171281066271 is a deficient number, since it is larger than the sum of its proper divisors (7064669135761).

15171281066271 is a wasteful number, since it uses less digits than its factorization.

15171281066271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736183 (or 2736172 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 48.

The spelling of 15171281066271 in words is "fifteen trillion, one hundred seventy-one billion, two hundred eighty-one million, sixty-six thousand, two hundred seventy-one".