16796108181581 has 2 divisors, whose sum is σ = 16796108181582. Its totient is φ = 16796108181580.

The previous prime is 16796108181563. The next prime is 16796108181653. The reversal of 16796108181581 is 18518180169761.

16796108181581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16784794455625 + 11313725956 = 4096925^2 + 106366^2 .

It is an emirp because it is prime and its reverse (18518180169761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16796108181581 - 2²² = 16796103987277 is a prime.

It is a super-2 number, since 2×16796108181581² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16796108181511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8398054090790 + 8398054090791.

It is an arithmetic number, because the mean of its divisors is an integer number (8398054090791).

Almost surely, 2^{16796108181581} is an apocalyptic number.

It is an amenable number.

16796108181581 is a deficient number, since it is larger than the sum of its proper divisors (1).

16796108181581 is an equidigital number, since it uses as much as digits as its factorization.

16796108181581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 62.

The spelling of 16796108181581 in words is "sixteen trillion, seven hundred ninety-six billion, one hundred eight million, one hundred eighty-one thousand, five hundred eighty-one".