16545123120137 has 2 divisors, whose sum is σ = 16545123120138. Its totient is φ = 16545123120136.

The previous prime is 16545123120103. The next prime is 16545123120161. The reversal of 16545123120137 is 73102132154561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14209914316816 + 2335208803321 = 3769604^2 + 1528139^2 .

It is an emirp because it is prime and its reverse (73102132154561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16545123120137 - 2⁸ = 16545123119881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16545123120094 and 16545123120103.

It is not a weakly prime, because it can be changed into another prime (16545123120437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272561560068 + 8272561560069.

It is an arithmetic number, because the mean of its divisors is an integer number (8272561560069).

Almost surely, 2^{16545123120137} is an apocalyptic number.

It is an amenable number.

16545123120137 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545123120137 is an equidigital number, since it uses as much as digits as its factorization.

16545123120137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

Adding to 16545123120137 its reverse (73102132154561), we get a palindrome (89647255274698).

The spelling of 16545123120137 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-three million, one hundred twenty thousand, one hundred thirty-seven".