16081856871 has 8 divisors (see below), whose sum is σ = 21448059264. Its totient is φ = 10718446200.

The previous prime is 16081856801. The next prime is 16081856873. The reversal of 16081856871 is 17865818061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16081856871 - 2⁷ = 16081856743 is a prime.

It is a super-2 number, since 2×16081856871² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16081856873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684451 + ... + 707556.

It is an arithmetic number, because the mean of its divisors is an integer number (2681007408).

Almost surely, 2^16081856871 is an apocalyptic number.

16081856871 is a deficient number, since it is larger than the sum of its proper divisors (5366202393).

16081856871 is a wasteful number, since it uses less digits than its factorization.

16081856871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395861.

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 16081856871 in words is "sixteen billion, eighty-one million, eight hundred fifty-six thousand, eight hundred seventy-one".