16081856873 has 2 divisors, whose sum is σ = 16081856874. Its totient is φ = 16081856872.

The previous prime is 16081856801. The next prime is 16081856891. The reversal of 16081856873 is 37865818061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8447815744 + 7634041129 = 91912^2 + 87373^2 .

It is an emirp because it is prime and its reverse (37865818061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16081856873 - 2¹⁰ = 16081855849 is a prime.

It is a super-2 number, since 2×16081856873² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16081852873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8040928436 + 8040928437.

It is an arithmetic number, because the mean of its divisors is an integer number (8040928437).

Almost surely, 2^16081856873 is an apocalyptic number.

It is an amenable number.

16081856873 is a deficient number, since it is larger than the sum of its proper divisors (1).

16081856873 is an equidigital number, since it uses as much as digits as its factorization.

16081856873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 16081856873 in words is "sixteen billion, eighty-one million, eight hundred fifty-six thousand, eight hundred seventy-three".