16090999248881 has 2 divisors, whose sum is σ = 16090999248882. Its totient is φ = 16090999248880.

The previous prime is 16090999248853. The next prime is 16090999248899. The reversal of 16090999248881 is 18884299909061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13808358721600 + 2282640527281 = 3715960^2 + 1510841^2 .

It is a cyclic number.

It is not a de Polignac number, because 16090999248881 - 2²² = 16090995054577 is a prime.

It is a super-2 number, since 2×16090999248881² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16090999248799 and 16090999248808.

It is not a weakly prime, because it can be changed into another prime (16090999241881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8045499624440 + 8045499624441.

It is an arithmetic number, because the mean of its divisors is an integer number (8045499624441).

Almost surely, 2^{16090999248881} is an apocalyptic number.

It is an amenable number.

16090999248881 is a deficient number, since it is larger than the sum of its proper divisors (1).

16090999248881 is an equidigital number, since it uses as much as digits as its factorization.

16090999248881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161243136, while the sum is 74.

The spelling of 16090999248881 in words is "sixteen trillion, ninety billion, nine hundred ninety-nine million, two hundred forty-eight thousand, eight hundred eighty-one".