16011871 has 4 divisors (see below), whose sum is σ = 16074432. Its totient is φ = 15949312.

The previous prime is 16011847. The next prime is 16011911. The reversal of 16011871 is 17811061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17811061 = 2999 ⋅5939.

It is a cyclic number.

It is not a de Polignac number, because 16011871 - 2¹¹ = 16009823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16011811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30895 + ... + 31408.

It is an arithmetic number, because the mean of its divisors is an integer number (4018608).

Almost surely, 2^16011871 is an apocalyptic number.

16011871 is a deficient number, since it is larger than the sum of its proper divisors (62561).

16011871 is an equidigital number, since it uses as much as digits as its factorization.

16011871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62560.

The product of its (nonzero) digits is 336, while the sum is 25.

The square root of 16011871 is about 4001.4835998664. The cubic root of 16011871 is about 252.0465134180.

The spelling of 16011871 in words is "sixteen million, eleven thousand, eight hundred seventy-one".